Meaning A girl's name of English origin, it means "slender." Origin of Keeley English Popular Middle Names Marie, Monroe, Rae, Sue Pronunciation 🔊 Listen Keeley KIY-Liy Similar Names Kyleen Louvaine Keilah Adina Ronalda Brygid Beitris Arleigh Jacki Kjellfrid Year by Year Popularity of Keeley