Gibb \gi-bb\ as a boy's name is a variant of Gibson (Old English) and Gilbert (Old French), and the meaning of Gibb is "son of Gilbert; bright promise". See also Gibbes.
The baby name Gibb sounds like Gibby, Gibbe and Gib. Other similar baby names are Gibbs, Bibi, Cobb, Gabbo, Gaby, Gabi, Gabe, Gabby, Gabbi, Gab, Gian, Gibor, Gibbor, Gidi, Gill, Gil, Gilby, Gide, Gili, Gino, Kibo, Robb, Tabb and Webb.