July \j(u)-ly\ as a girl's name (also used as boy's name July), is a variant of Julie (French). See for meaning of July.
The baby name July sounds like Joly, Juli, Juley and Jully. Other similar baby names are Judy, Ally, Kaly, Daly, Eily, Elly, Eula, Julia, Jalyn, Jacy, Jady, Jany, Jay, Jey, Jery, Jill, Jyll, Jyl, Jilly, Jil, Jolyn, Joby, Jody, Joely, Jola, Joli, Joley, Josy, Joey, Joy, Judi, Judey, Julyne, Julee, June, Juno, Lily, Lulu, Lula, Nula, Pauly, Sula, Tula, Tully, Oula and Yula.