The name Oswald is a boy's name of English origin meaning "divine power". Oswald and is often added to lists like Best Cool Unusual Boys' Names and discussed in our forums with posts like "Themed Families..".
From the experts:
Despite the success of so many O-starting boys names--Oliver, Owen, Otis, Oscar--Oswald has not yet shown any signs of resurrection, though he does have the animating nicknames Ozzie/Ozzy and Oz. The name has some literary cred--in Chaucer's Canterbury Tales, Shakespeare's King Lear and a novel by H. G.Wells--and there was early cartoon character Oswald the Lucky Rabbit.