1) Danish girl name 
Jonna is a Danish name for girls. The meaning is `God is gracious` The name Jonna is most commonly given to Dutch girls. (18 times more often than to American girls.) Jonna is given to boys and girls in the Netherlands It is short for: Johanna, Hanne What do they use in other countries? Johnnie (English) Jonnie Johnni Jonni Johna (Slavic) The name ...