Meaning:
Its source is Caoilinn, a Gaelic name meaning "Slim and fair."
Popularity:
The name Keely ranked 647th in popularity for females of all ages in a sample of 2000-2003 Social Security Administration statistics and 1616th in popularity for females of all ages in a sample of the 1990 US Census.
Though this name appears on the 1990 U.S. Census lists, it is used by only a small percentage of the general population.