Haggi is a German comic artist who makes comics in a very simplistic, almost childlike style. The language in the comics is written like children speak: phonetically, and with a lot of bad grammar. His main characters are a kid called Hartmut and his friends, Sussi and Holger.
Haggi's first comics appeared in Plop in the mid-1980s. He self-published the fanzine Au Weia, of which 6 issues appeared from 1986. He has published albums with the character 'Ferdi' at Quasimodo and Zwerchfell in the early 1990s. He has also made several "Piccolo" comic books for Comic Archiv.