umayr

## Pre-requisite: You have to know your last commit message from your deleted branch.
git reflog
# Search for message in the list
# a901eda HEAD@{18}: commit: <last commit message>

# Now you have two options, either checkout revision or HEAD
git checkout a901eda 
# Or
git checkout HEAD@{18}

jbgo

UPDATE: A better way! (August 2015)

As pointed out by @johntyree in the comments, using git reflog is easier and more reliable. Thanks for the suggestion!

 $ git reflog
1ed7510 HEAD@{1}: checkout: moving from develop to 1ed7510
3970d09 HEAD@{2}: checkout: moving from b-fix-build to develop
1ed7510 HEAD@{3}: commit: got everything working the way I want
70b3696 HEAD@{4}: commit: upgrade rails, do some refactoring