Cully \c(ul)-ly\ as a boy's name is a variant of Culley (Irish, Gaelic) and Culver (Old English), and the meaning of Cully is "the woods; dove".
The baby name Cully sounds like Caley, Caily, Clay, Cloy, Coley, Colle, Coll, Colla, Colley and Kelly. Other similar baby names are Sully and Tully.