Ferlin is a unique and distinctive given name of American origin, derived from German roots. It is believed to be a variant spelling of the German name Fertlein, which was originally an occupational surname for a fertile or productive farm worker. The name Ferlin has been popular in the United States since the mid-20th century but remains relatively uncommon elsewhere in the world.
The name Ferlin experienced a peak in popularity during the late 1950s and early 1960s with consistently high numbers of births per year. However, after 1967, its usage as a baby name significantly decreased, showing only sporadic occurrences until the mid-1980s.