⚠️ Depending on workspace settings, all users may not have permission to rename certain channels.
How to change the name of a Slack channel
Go to the channel you would like to change the name of.
Click the ℹ️ in the top right corner.
A menu will be displayed, choose
Morefrom the options at the top.
Enter a new name for the channel in the text box.
Names must be lowercase, without spaces or periods, and can’t be longer than 80 characters.
You’re all set, the channel is now renamed! 🎉
Check out this post from Slack for more on renaming channels.