Royce \ro(y)-ce\ as a boy's name (also used as girl's name Royce), is pronounced royce. Possibly (Old German) "famous", or (Old French, Old English) "son of the king". Made famous by the luxury car Rolls-Royce, which is the combined name of the two founders.
Royce has 1 variant form: Roice.
Baby names that sound like Royce are Rayce, Raice, Reece, Rice and Rosse.