Halley \ha(l)-ley\ as a boy's name (also used as girl's name Halley), is of Old English origin, and the meaning of Halley is "meadow near the hall; holy". Different from the homonym Haley. Hallie is popular as a girl's name. Astronomer Edmund Halley.

Baby names that sound like Halley are Hayley, Hailey, Halle and Hawley. Other similar baby names are Hadley, Hagley, Hallen, Hallem, Halsey, Hallsy, Hallsey, Hanley and Harley.