Jedaiah \j(e)-daiah\ as a boy's name is a variant of Jediah (Hebrew), and the meaning of Jedaiah is "Jehovah knows".

The baby name Jedaiah sounds like Judah, Jaide, Jed, Jedd, Jada, Jeth, Jodie and Jodi. Other similar baby names are Jedadiah, Gedaliah, Jeriah, Jedediah, Jedidiah and Jesiah.