Karl \k(a)-rl\ as a boy's name is pronounced karl. It is of Old German origin, and the meaning of Karl is "free man". German form of Charles. Fashion designers Karl Lagerfield, Karl Kani; economist Karl Marx; basketball player Karl Malone.

Karl has 15 variant forms: Carl, Kale, Karel, Karlan, Karle, Karlens, Karli, Karlin, Karlo, Karlos, Karlton, Karrel, Karol, Karoly and Karson.

Baby names that sound like Karl are Carel, Carly, Carlo, Caryl, Kyril and Kiril.