Answer by Dolda2000 for How to recover a dropped stash in Git?

If you didn't close the terminal, just look at the output from git stash pop and you'll have the object ID of the dropped stash. It normally looks like this:

$ git stash pop[...]Dropped refs/stash@{0} (2ca03e22256be97f9e40f08e6d6773c7d41dbfd1)

(Note that git stash drop also produces the same line.)

To get that stash back, just run git branch tmp 2cae03e, and you'll get it as a branch. To convert this to a stash, run:

git stash apply tmpgit stash

Having it as a branch also allows you to manipulate it freely; for example, to cherry-pick it or merge it.