In the world, Bub (Bub 
, バブ 
, Boop 
) is a rare mostly male, but seldom feminine first name. The forename Bub is characteristic of Australia, where it is a very rare unisex name, the United States, where it is a very rare dominantly boy's, but uncommonly feminine name, and Nigeria, where it is a very rare unisex name. Measured by absolute frequency, it is commonest in India, the United States, and Nigeria. More frequently, Bub is the last name as well as the forename.
Bub is also a name for the fictitious and mythical characters: Bub , the fictional dragon, Bubble Bobble.