Family name ฟันเฟือง (ฟันเฟือง 
, Cogels 
, Cogtoing) , around the globe, is a rare last name. The last name ฟันเฟือง is habitual in Belgium, where it is quite a rare surname, Netherlands, where it is a rare surname, and Thailand, where it is a very rare surname. In absolute terms, it most frequently occurs in Belgium, Thailand, and Indonesia.