Fritz (Friedrich) Anton Otto Prölß (1855-1934) was a German portrait and genre painter.
Prölß studied painting at the academies in Dresden with Ferdinand Pauwels and in Munich from 1880 with Franz von Defregger.
He was a member of the Munich artists' cooperative and exhibited his paintings in the Munich Glass Palace, among other places.
Although his residence was in Munich, he spent the summer months in Mittenwald for more than 50 years from 1879, where he created most of his work.