Keely \ke(e)-ly\ as a girl's name (also used as boy's name Keely), is pronounced KEE-lee. It is of Gaelic origin, and the meaning of Keely is "slender, pretty". From Caoilinn. Also used as an Irish variant of Kelly. Actress Keeley Shaye Smith.
Keely has 16 variant forms: Kealey, Kealy, Keelie, Keeley, Keeli, Keelia, Keelie, Keelyn, Keighley, Keighly, Keili, Keilie, Keyley, Keylie, Keylley and Keyllie.