Jona \j(o)-na\ as a boy's name (also used as girl's name Jona), is a variant of John (Hebrew), and the meaning of Jona is "God is gracious".
The baby name Jona sounds like Jon, Jonn and Jonah. Other similar baby names are Jonas, Ron, Lon, Tony, Toni, Ton, Boni, Honi, Conn, Con, Dana, Donau, Don, Donn, Ion, Jeno, Jino, Jovan, Eon, Jock, Jan, Jano, Janak, Janna, Janan, Jada, Jens, Joab, Job, Joby, Jobe, Jody, Jodi, Joe, Joey, Joed, Joel, Johnn, Johan, Joao, Jonte, Jontae, Jonny, Jones, Jory, Jori, Joran, Jorn, Jose, Joss, Joos, Joop, Jo, Jozua, Josua, Josh, Josia, Jovi, Jove, June, Kana, Lonn, Ronn, Vonn and Von.