Family name Давидофф (Davidoff 
, Давидофф 
) , all over the world, is quite a rare surname. The family name Давидофф is characteristic of Israel, where it is quite a rare surname, Switzerland, and Denmark, where it is a rare surname. Measured by absolute frequency, the name is most common in the United States, Israel, and Canada. Much less frequently, Давидофф is the forename as well as the last name.