Family name Osne (Osne 
) , in the entire world, is a very rare last name. The cognomen Osne is habitual in Latvia, where it is a rare surname, the United States, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in the United States, Latvia, and Brazil. Also, Osne is the forename as well as the last name.