Gilbey \gi(l)-bey\ as a boy's name is a variant of Gilby (Old Norse, Irish, Gaelic), and the meaning of Gilbey is "estate of the hostage; blond boy".

The baby name Gilbey sounds like Gillbey, Colbey, Gillby and Kelbey. Other similar baby names are Gilley, Gibby, Gibbe, Giles, Gilles, Gillen, Gilroy, Gilray, Selbey and Welbey.