diff --git a/redbot/cogs/admin/admin.py b/redbot/cogs/admin/admin.py
index 245cc242e..cfecd2d4f 100644
--- a/redbot/cogs/admin/admin.py
+++ b/redbot/cogs/admin/admin.py
@@ -297,7 +297,7 @@ class Admin(commands.Cog):
 
             await ctx.send(_("The announcement has begun."))
         else:
-            prefix = ctx.prefix
+            prefix = ctx.clean_prefix
             await ctx.send(_(RUNNING_ANNOUNCEMENT).format(prefix=prefix))
 
     @announce.command(name="cancel")
diff --git a/redbot/cogs/bank/bank.py b/redbot/cogs/bank/bank.py
index abee96905..48fb059e7 100644
--- a/redbot/cogs/bank/bank.py
+++ b/redbot/cogs/bank/bank.py
@@ -111,7 +111,7 @@ class Bank(commands.Cog):
                 _(
                     "This will toggle the bank to be {banktype}, deleting all accounts "
                     "in the process! If you're sure, type `{command}`"
-                ).format(banktype=word, command="{}bankset toggleglobal yes".format(ctx.prefix))
+                ).format(banktype=word, command=f"{ctx.clean_prefix}bankset toggleglobal yes")
             )
         else:
             await bank.set_global(not cur_setting)
diff --git a/redbot/cogs/customcom/customcom.py b/redbot/cogs/customcom/customcom.py
index b9c674559..36e4b5284 100644
--- a/redbot/cogs/customcom/customcom.py
+++ b/redbot/cogs/customcom/customcom.py
@@ -236,7 +236,7 @@ class CustomCommands(commands.Cog):
         except AlreadyExists:
             await ctx.send(
                 _("This command already exists. Use `{command}` to edit it.").format(
-                    command="{}customcom edit".format(ctx.prefix)
+                    command=f"{ctx.clean_prefix}customcom edit"
                 )
             )
 
@@ -257,7 +257,7 @@ class CustomCommands(commands.Cog):
         except AlreadyExists:
             await ctx.send(
                 _("This command already exists. Use `{command}` to edit it.").format(
-                    command="{}customcom edit".format(ctx.prefix)
+                    command=f"{ctx.clean_prefix}customcom edit"
                 )
             )
         except ArgParseError as e:
@@ -302,7 +302,7 @@ class CustomCommands(commands.Cog):
         except NotFound:
             await ctx.send(
                 _("That command doesn't exist. Use `{command}` to add it.").format(
-                    command="{}customcom create".format(ctx.prefix)
+                    command=f"{ctx.clean_prefix}customcom create"
                 )
             )
 
@@ -334,7 +334,7 @@ class CustomCommands(commands.Cog):
         except NotFound:
             await ctx.send(
                 _("That command doesn't exist. Use `{command}` to add it.").format(
-                    command="{}customcom create".format(ctx.prefix)
+                    command=f"{ctx.clean_prefix}customcom create"
                 )
             )
         except ArgParseError as e:
@@ -355,7 +355,7 @@ class CustomCommands(commands.Cog):
                 _(
                     "There are no custom commands in this server."
                     " Use `{command}` to start adding some."
-                ).format(command="{}customcom create".format(ctx.prefix))
+                ).format(command=f"{ctx.clean_prefix}customcom create")
             )
             return
 
diff --git a/redbot/cogs/downloader/downloader.py b/redbot/cogs/downloader/downloader.py
index 5cb091a1d..84afca173 100644
--- a/redbot/cogs/downloader/downloader.py
+++ b/redbot/cogs/downloader/downloader.py
@@ -741,12 +741,12 @@ class Downloader(commands.Cog):
                         _(
                             "\nThese cogs are now pinned and won't get updated automatically."
                             " To change this, use `{prefix}cog unpin <cog>`"
-                        ).format(prefix=ctx.prefix)
+                        ).format(prefix=ctx.clean_prefix)
                         if rev is not None
                         else ""
                     )
                     + _("\nYou can load them using `{prefix}load <cogs>`").format(
-                        prefix=ctx.prefix
+                        prefix=ctx.clean_prefix
                     )
                     + message
                 )
@@ -797,7 +797,7 @@ class Downloader(commands.Cog):
                         "\nThey were most likely removed without using `{prefix}cog uninstall`.\n"
                         "You may need to remove those files manually if the cogs are still usable."
                         " If so, ensure the cogs have been unloaded with `{prefix}unload {cogs}`."
-                    ).format(prefix=ctx.prefix, cogs=" ".join(failed_cogs))
+                    ).format(prefix=ctx.clean_prefix, cogs=" ".join(failed_cogs))
                 )
         await self.send_pagified(ctx, message)
 
diff --git a/redbot/cogs/economy/economy.py b/redbot/cogs/economy/economy.py
index 8fc12a8ae..4fc05cd0e 100644
--- a/redbot/cogs/economy/economy.py
+++ b/redbot/cogs/economy/economy.py
@@ -247,7 +247,7 @@ class Economy(commands.Cog):
                     "`{prefix}bank reset yes`"
                 ).format(
                     scope=self.bot.user.name if await bank.is_global() else _("this server"),
-                    prefix=ctx.prefix,
+                    prefix=ctx.clean_prefix,
                 )
             )
         else:
@@ -279,7 +279,7 @@ class Economy(commands.Cog):
                     "This will delete all bank accounts for users no longer in this server."
                     "\nIf you're sure, type "
                     "`{prefix}bank prune local yes`"
-                ).format(prefix=ctx.prefix)
+                ).format(prefix=ctx.clean_prefix)
             )
         else:
             await bank.bank_prune(self.bot, guild=ctx.guild)
@@ -301,7 +301,7 @@ class Economy(commands.Cog):
                     "This will delete all bank accounts for users "
                     "who no longer share a server with the bot."
                     "\nIf you're sure, type `{prefix}bank prune global yes`"
-                ).format(prefix=ctx.prefix)
+                ).format(prefix=ctx.clean_prefix)
             )
         else:
             await bank.bank_prune(self.bot)
@@ -333,7 +333,7 @@ class Economy(commands.Cog):
                     "This will delete {name}'s bank account."
                     "\nIf you're sure, type "
                     "`{prefix}bank prune user {id} yes`"
-                ).format(prefix=ctx.prefix, id=uid, name=name)
+                ).format(prefix=ctx.clean_prefix, id=uid, name=name)
             )
         else:
             await bank.bank_prune(self.bot, guild=ctx.guild, user_id=uid)
diff --git a/redbot/cogs/image/image.py b/redbot/cogs/image/image.py
index 91d776ed5..dab583a91 100644
--- a/redbot/cogs/image/image.py
+++ b/redbot/cogs/image/image.py
@@ -54,7 +54,7 @@ class Image(commands.Cog):
             await ctx.send(
                 _(
                     "A Client ID has not been set! Please set one with `{prefix}imgurcreds`."
-                ).format(prefix=ctx.prefix)
+                ).format(prefix=ctx.clean_prefix)
             )
             return
         headers = {"Authorization": "Client-ID {}".format(imgur_client_id)}
@@ -107,7 +107,7 @@ class Image(commands.Cog):
             await ctx.send(
                 _(
                     "A Client ID has not been set! Please set one with `{prefix}imgurcreds`."
-                ).format(prefix=ctx.prefix)
+                ).format(prefix=ctx.clean_prefix)
             )
             return
 
@@ -151,7 +151,7 @@ class Image(commands.Cog):
             "8. Check the captcha box and click next.\n"
             "9. Your Client ID will be on the next page.\n"
             "10. Run the command `{prefix}set api imgur client_id <your_client_id_here>`.\n"
-        ).format(prefix=ctx.prefix)
+        ).format(prefix=ctx.clean_prefix)
 
         await ctx.maybe_send_embed(message)
 
@@ -169,7 +169,7 @@ class Image(commands.Cog):
         if not giphy_api_key:
             await ctx.send(
                 _("An API key has not been set! Please set one with `{prefix}giphycreds`.").format(
-                    prefix=ctx.prefix
+                    prefix=ctx.clean_prefix
                 )
             )
             return
@@ -202,7 +202,7 @@ class Image(commands.Cog):
         if not giphy_api_key:
             await ctx.send(
                 _("An API key has not been set! Please set one with `{prefix}giphycreds`.").format(
-                    prefix=ctx.prefix
+                    prefix=ctx.clean_prefix
                 )
             )
             return
@@ -235,6 +235,6 @@ class Image(commands.Cog):
             "5. Write an app description, example: *Used for Red Bot*.\n"
             "6. Copy the API key shown.\n"
             "7. Run the command `{prefix}set api GIPHY api_key <your_api_key_here>`.\n"
-        ).format(prefix=ctx.prefix)
+        ).format(prefix=ctx.clean_prefix)
 
         await ctx.maybe_send_embed(message)
diff --git a/redbot/cogs/mod/mod.py b/redbot/cogs/mod/mod.py
index 65128f1bf..55a58e581 100644
--- a/redbot/cogs/mod/mod.py
+++ b/redbot/cogs/mod/mod.py
@@ -1,4 +1,5 @@
 import asyncio
+import re
 from abc import ABC
 from collections import defaultdict
 from typing import List, Tuple
@@ -104,11 +105,12 @@ class Mod(
             await self.settings.version.set("1.0.0")  # set version of last update
         if await self.settings.version() < "1.1.0":
             prefixes = await self.bot.get_valid_prefixes()
+            prefix = re.sub(rf"<@!?{self.bot.user.id}>", f"@{self.bot.user.name}", prefixes[0])
             msg = _(
                 "Ignored guilds and channels have been moved. "
                 "Please use `{prefix}moveignoredchannels` if "
                 "you were previously using these functions."
-            ).format(prefix=prefixes[0])
+            ).format(prefix=prefix)
             self.bot.loop.create_task(self.bot.send_to_owners(msg))
             await self.settings.version.set(__version__)
 
diff --git a/redbot/cogs/mod/settings.py b/redbot/cogs/mod/settings.py
index 24dfc7fc9..efa00c0e0 100644
--- a/redbot/cogs/mod/settings.py
+++ b/redbot/cogs/mod/settings.py
@@ -200,15 +200,15 @@ class ModSettings(MixinMeta):
         if not cur_setting:
             await self.settings.guild(guild).reinvite_on_unban.set(True)
             await ctx.send(
-                _("Users unbanned with {command} will be reinvited.").format(
-                    command=f"{ctx.prefix}unban"
+                _("Users unbanned with `{command}` will be reinvited.").format(
+                    command=f"{ctx.clean_prefix}unban"
                 )
             )
         else:
             await self.settings.guild(guild).reinvite_on_unban.set(False)
             await ctx.send(
-                _("Users unbanned with {command} will not be reinvited.").format(
-                    command=f"{ctx.prefix}unban"
+                _("Users unbanned with `{command}` will not be reinvited.").format(
+                    command=f"{ctx.clean_prefix}unban"
                 )
             )
 
diff --git a/redbot/cogs/streams/streams.py b/redbot/cogs/streams/streams.py
index a2d424755..197d624b6 100644
--- a/redbot/cogs/streams/streams.py
+++ b/redbot/cogs/streams/streams.py
@@ -111,7 +111,8 @@ class Streams(commands.Cog):
             try:
                 tokens["client_secret"]
             except KeyError:
-                prefix = (await self.bot._config.prefix())[0]
+                prefixes = await self.bot.get_valid_prefixes()
+                prefix = re.sub(rf"<@!?{self.bot.user.id}>", f"@{self.bot.user.name}", prefixes[0])
                 message = _(
                     "You need a client secret key to use correctly Twitch API on this cog.\n"
                     "Follow these steps:\n"
@@ -203,14 +204,14 @@ class Streams(commands.Cog):
                 _(
                     "The Twitch token is either invalid or has not been set. See "
                     "`{prefix}streamset twitchtoken`."
-                ).format(prefix=ctx.prefix)
+                ).format(prefix=ctx.clean_prefix)
             )
         except InvalidYoutubeCredentials:
             await ctx.send(
                 _(
                     "The YouTube API key is either invalid or has not been set. See "
                     "`{prefix}streamset youtubekey`."
-                ).format(prefix=ctx.prefix)
+                ).format(prefix=ctx.clean_prefix)
             )
         except APIError:
             await ctx.send(
@@ -357,7 +358,7 @@ class Streams(commands.Cog):
                     _(
                         "The Twitch token is either invalid or has not been set. See "
                         "`{prefix}streamset twitchtoken`."
-                    ).format(prefix=ctx.prefix)
+                    ).format(prefix=ctx.clean_prefix)
                 )
                 return
             except InvalidYoutubeCredentials:
@@ -365,7 +366,7 @@ class Streams(commands.Cog):
                     _(
                         "The YouTube API key is either invalid or has not been set. See "
                         "`{prefix}streamset youtubekey`."
-                    ).format(prefix=ctx.prefix)
+                    ).format(prefix=ctx.clean_prefix)
                 )
                 return
             except APIError:
@@ -415,7 +416,7 @@ class Streams(commands.Cog):
             "client_secret <your_client_secret_here>`\n\n"
             "Note: These tokens are sensitive and should only be used in a private channel\n"
             "or in DM with the bot.\n"
-        ).format(prefix=ctx.prefix)
+        ).format(prefix=ctx.clean_prefix)
 
         await ctx.maybe_send_embed(message)
 
@@ -436,7 +437,7 @@ class Streams(commands.Cog):
             "`{prefix}set api youtube api_key <your_api_key_here>`\n\n"
             "Note: These tokens are sensitive and should only be used in a private channel\n"
             "or in DM with the bot.\n"
-        ).format(prefix=ctx.prefix)
+        ).format(prefix=ctx.clean_prefix)
 
         await ctx.maybe_send_embed(message)
 
diff --git a/redbot/cogs/trivia/trivia.py b/redbot/cogs/trivia/trivia.py
index ed19eff46..046aefbba 100644
--- a/redbot/cogs/trivia/trivia.py
+++ b/redbot/cogs/trivia/trivia.py
@@ -198,7 +198,7 @@ class Trivia(commands.Cog):
                     _(
                         "Invalid category `{name}`. See `{prefix}trivia list` for a list of "
                         "trivia categories."
-                    ).format(name=category, prefix=ctx.prefix)
+                    ).format(name=category, prefix=ctx.clean_prefix)
                 )
             except InvalidListError:
                 await ctx.send(
@@ -302,7 +302,7 @@ class Trivia(commands.Cog):
                 _(
                     "Unknown field `{field_name}`, see `{prefix}help trivia leaderboard server` "
                     "for valid fields to sort by."
-                ).format(field_name=sort_by, prefix=ctx.prefix)
+                ).format(field_name=sort_by, prefix=ctx.clean_prefix)
             )
             return
         guild = ctx.guild
@@ -331,7 +331,7 @@ class Trivia(commands.Cog):
                 _(
                     "Unknown field `{field_name}`, see `{prefix}help trivia leaderboard server` "
                     "for valid fields to sort by."
-                ).format(field_name=sort_by, prefix=ctx.prefix)
+                ).format(field_name=sort_by, prefix=ctx.clean_prefix)
             )
             return
         data = await self.conf.all_members()
diff --git a/redbot/cogs/warnings/warnings.py b/redbot/cogs/warnings/warnings.py
index 6ad3755b8..914745c96 100644
--- a/redbot/cogs/warnings/warnings.py
+++ b/redbot/cogs/warnings/warnings.py
@@ -280,7 +280,7 @@ class Warnings(commands.Cog):
                     msg += " " + _(
                         "Do `{prefix}warningset allowcustomreasons true` to enable custom "
                         "reasons."
-                    ).format(prefix=ctx.prefix)
+                    ).format(prefix=ctx.clean_prefix)
                     return await ctx.send(msg)
             else:
                 reason_type = registered_reasons[reason.lower()]
@@ -322,7 +322,7 @@ class Warnings(commands.Cog):
                 reason=_("{description}\nPoints: {points}").format(
                     description=reason_type["description"], points=reason_type["points"]
                 ),
-                prefix=ctx.prefix,
+                prefix=ctx.clean_prefix,
                 user=user.id,
                 message=ctx.message.id,
             )
diff --git a/redbot/core/bot.py b/redbot/core/bot.py
index a7e549577..0f53373dd 100644
--- a/redbot/core/bot.py
+++ b/redbot/core/bot.py
@@ -3,6 +3,7 @@ import inspect
 import logging
 import os
 import platform
+import re
 import shutil
 import sys
 from collections import namedtuple
@@ -551,7 +552,7 @@ class RedBase(
             destinations = await self.get_owner_notification_destinations()
             for destination in destinations:
                 prefixes = await self.get_valid_prefixes(getattr(destination, "guild", None))
-                prefix = prefixes[0]
+                prefix = re.sub(rf"<@!?{self.bot.user.id}>", f"@{self.bot.user.name}", prefixes[0])
                 try:
                     await destination.send(content.format(prefix=prefix))
                 except Exception as _exc: