Buddy is an American boy's name of Irish origin, meaning 'resolute'. It has been popular in the United States since the mid-20th century. The use of Buddy as a given name began around the 1930s and its popularity peaked in the 1950s.
Buddy was quite popular among parents in the mid-20th century, with a notable spike in usage between 1925 and 1943. After a gap of nearly four decades, it saw a resurgence in popularity in 1980.