Jonathan \j(o)-na-than\ as a boy's name is pronounced JAHN-a-thun. It is of Hebrew origin, and the meaning of Jonathan is "gift of God". Related to Nathan. Biblical: the son of King Saul, Jonathan was noted for his manliness, generosity, and unselfishness. He saved David's life when Saul would have killed him. Author Jonathan Swift; actors Jon Voight, Jonathan Lipnicki.
Jonathan has 4 variant forms: Johnathan, Johnathon, Jon and Jonathon.