Glen \g-len\ as a boy's name (also used as girl's name Glen), is pronounced glen. It is of Irish and Gaelic origin, and the meaning of Glen is "glen". Place name. A glen is a narrow valley between hills. As a surname, Glen would refer to an ancestor who lived in such a valley. Singer Glen Campbell; band leader Glenn Miller; pianist Glenn Gould; hockey player Glen Murray.

Glen has 13 variant forms: Gleann, Glendale, Glendon, Glendyn, Glenn, Glennard, Glennie, Glennon, Glenny, Glin, Glinn, Glyn and Glynn.

Baby names that sound like Glen are Galen, Cleon, Kleon, Gaylen, Galyn, Galin, Galeno, Galan, Gillen, Gilean, Gilon, Kalen, Klein and Kylen.