| Birth Place: | Halmstad, Sweden |
| Birth Date: | 17 June 1896 |
| Nationality: | Swedish |
| Area: | Cartoonist |
| Notable Works: | 91:an |
Rudolf Petersson (17 June 1896 – 17 April 1970) was a Swedish comic creator and the father of one of the most popular Swedish comics of all time: 91:an.
Petersson performed national service at the I 16 regiment in Halmstad, Halland, between 1916 and 1918. Mandel Karlsson, the protagonist of 91:an, is based on two people Petersson met during his national service at I 16 — a blond and ill-tempered Smålandian who was turned soft by accordion music, and a friendly, short haired person. Some of the attributes were switched and the result was 91:an and another character, 87:an Axelsson. Several of the officers in 91:an are also based on real people Petersson met during his service.