Girl name origins & meanings Old English : Holly bush Girl name variations Hollye Holli Hollie Hollyn Holea Holeah Holee Hollei Holleigh Holy Boy name origins & meanings Old English : Holy day; grove of holly trees Boy name variations Hollis Holliss Hollister Hollie Hollys Hollyss Family name origins & meanings Irish : part-translation of Gaelic Mac Cuilinn (see McCullen) in County Kerry, and in Ulster sometimes a variant of McQuillan, also an Anglicized form of Mac Cuilinn. It is rarely of English origin.English : variant spelling of Holley.Possibly an altered spelling of Czech or Slovak Holý (see Holy). Famous people with this first name Holly Madison Famous people who gave their babies this name Michael Bolton Terry Gilliam