Shit Happens!! There are times where you named a branch wrong or want to make it more meaningful. Doing it locally is quite simple:

git branch -m new-branch-name

In case you are on a different branch, you can do it like this:

git branch -d old-branch-name new-branch-name

Rename git branch on remote

In some cases, you might have pushed your branch to remote too, for that you can run the following command to rename it on remote too:

git push origin :old-branch-name new-branch-name

To reset the upstream branch for the newly named local branch

Switch to the branch and then run the following command:

git push origin -u new-branch-name