Johnathan is an American spelling of Jonathan that folds in the familiar John; the Hebrew original, Yehonatan, means "God has given". In the Bible Jonathan is the son of King Saul and the devoted friend of David. Johnathan was number 157 in 2000, its best year of the century, and has declined steadily since, from number 308 in 2015 to number 508 in 2025.