Where does “Jonas” come from?

Jonas (Middle Dutch) comes from Latin Iōnās, from Ancient Greek Ἰωνᾶς, from Hebrew יונה, from Hebrew יוֹנָה — dove.

Ancestry of “Jonas”, step by step

Step	Language	Word	Meaning
1	Latin	Iōnās	Jonah Old Testament prophet
2	Ancient Greek	Ἰωνᾶς	Jonah, a given name, famously held by the Old Testament prophet to Nineveh, swallowed by a large fish. Also, the father of Jesus' disciples Peter and Andrew
3	Hebrew	יונה	dove, pigeon; dove
4	Hebrew	יוֹנָה	dove