This Johnny Depp photo contains
fedora, felt hat, homburg, stetson, trilby, boater, leghorn, panama, panama hat, sailor, skimmer, and straw hat.
There might also be
pith hat, pith helmet, sun helmet, topee, topi, porkpie, porkpie hat, dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, and beaver.