Bob is a shortened version of the name Robert.

It can also refer to the following:

• Bob cut, a type of hair style
• Bob, a fictional character used in explanations
• Microsoft Bob
• J. R. "Bob" Dobbs, figurehead of the Church of the SubGenius
• Shilling
• Bob (New Earth), The name for the fictional planet in Titan A.E.

BOB can also serve as a three letter abbreviation for the following:

• Baby on board, an automobile sign fad that was popular during the 1980s.
• Band of Brothers, TV-series
• Bank of Beirut
• Bank of Bermuda
• Best of breed , commonly used in reference to the computer industry or with dogs.
• Born on Board referring to many of the inhabitants of the USSC Marathon in the now old Doom-like game for the Apple Macintosh.
• Blitter OBject , a type of graphics construct available on some versions of the Commodore Amiga.
• Bombs Over Baghdad , B.O.B. - Song by OutkastBob the Dog