Reilley \re(il)-ley\ as a girl's name (also used as boy's name Reilley), is a variant of Riley (Irish, Gaelic), and the meaning of Reilley is "courageous".

The baby name Reilley sounds like Reilly and Railey. Other similar baby names are Bailley, Nelley, Keylley, Kelley, Lilley, Neille, Ripley, Teille, Tilley and Billey.