Last name Кросбі (Crosby 
, Кросбі 
) , throughout the world, is a common family name. The last name Кросбі is habitual in Grenada, where it is quite a common surname, the United States, and Trinidad and Tobago. Measured by absolute frequency, the name is most common in the United States, the United Kingdom, and Canada. Very seldom, Кросбі is the forename as well as the last name.