Girl name origins & meanings Irish : Secluded wooded valley Girl name variations Glen Glenna Glena Glenda Glyn Glynn Glynnis Glynis Glenetta Glenne Boy name origins & meanings Irish : Secluded wooded valley Boy name variations Glen Glenard Glenon Glendon Glean Gleann Glennie Glennis Glennon Glenny Family name origins & meanings Scottish and Irish (Donegal) : see Glenny. Famous people with this first name Glenn Close