Namesakes
Biblical Characters:
2 characters
John (a.k.a. Jonas) (m) John 21:15 
Jonah (a.k.a. Jonas) (m) Jonah 1:1
Fictional Characters from Song Titles:
1 character
(character) Jonas 1994 My Name Is Jonas
Fictional Characters from Television:
2 characters
Jonas Quinn 1997 Stargate SG-1
Jonas Rey 2000 Strong Medicine
Lithuanian Presidents and Prime Ministers:
2 presidents, 1 prime minister
(president) Jonas Staugaitis 1926
(prime minister) Jonas Černius 1939
(president) Jonas Žemaitis 1949-1954
Norwegian Prime Ministers:
1 prime minister
Jonas Gahr Støre 2021-
Notable Actors and Entertainers:
1 actor
Jonas Armstrong 1981-
Notable Athletes:
2 handball, 2 soccer, 1 basketball
(handball) Jonas Källman 1981-
(handball) Jonas Larholm 1982-
(soccer) Marcus Olsson (a.k.a. Jonas) 1988-
(basketball) Serge Ibaka (a.k.a. Jonas) 1989-
(soccer) Jonas Hector 1990-
Notable Musicians:
1 musician, 1 singer
Joey Jordison (a.k.a. Jonas) 1975-2021
Jonas "Basshunter" Altberg 1984-
Notable Scientists and Inventors:
1 physician
Jonas Salk 1914-1995
Olympic Medalists:
5 silver, 1 gold
(gold) Jonas Reckermann 2012 beach volleyball
(silver) Jonas Høgh-Christensen 2012 sailing
(silver) Jonas Källman 2012 handball
(silver) Jonas Larholm 2012 handball
(silver) Serge Ibaka (a.k.a. Jonas) 2012 basketball
(silver) Jonas Gustavsson 2014 ice hockey
Saints:
1 saint
Saint Jonas ?-327
Swiss Presidents:
1 president
Jonas Furrer 1848-1849; 1852; 1855; 1858