# Rename the local branch to the new name
git branch -m <old_name> <new_name>

# Delete the old branch on remote - where <remote> is, for example, origin
git push <remote> --delete <old_name>

# Or shorter way to delete remote branch [:]
git push <remote> :<old_name>

# Push the new branch to remote
git push <remote> <new_name>

# Reset the upstream branch for the new_name local branch
git push <remote> -u <new_name>

$ git checkout Branch-Name-You-Want-to-Change
$ git branch -m New-Branch-Name

 $ git branch -m <new_name>

Rename a local and remote branch in git
Rename your local branch. If you are on the branch you want to rename: git branch -m new-name. ...
Delete the old-name remote branch and push the new-name local branch. git push origin :old-name new-name.
Reset the upstream branch for the new-name local branch. Switch to the branch and then: git push origin -u new-name.