Klay \k-lay\ as a boy's name is a variant of Clay (Old English). See for meaning of Klay.

The baby name Klay sounds like Cloy, Kaley, Kealy, Kelly and Kiley. Other similar baby names are Kay, Aly, Bly, Kaye, Kian, Kean, Klaus, Koby, Kody, Kory, Ely, Eloy, Gay, Gray, Kacy, Kalan, Kai, Kaj, Kam, Kaz, Kelan, Kelby, Kelsy, Keary, Key, Klaes, Klaas, Kolby, Kylar, Kylan, Ola and Sly.