Glenn \g-le-nn\ as a boy's name (also used as girl's name Glenn), is a variant of Glen (Irish, Gaelic), and the meaning of Glenn is "glen".

The baby name Glenn sounds like Glynn, Glinn, Glenny and Gleann. Other similar baby names are Alen, Alann, Cleon, Kleon, Flann, Flynn, Flinn, Galen, Galeno, Gilean, Glyn, Glin, Glennon, Glennie, Gunn, Gwynn, Gwinn, Guinn, Jalenn, Kenn, Klein, Lenn and Olen.