Conrad II, Count of Rietberg

Conrad II, Count of Rietberg (died 24 April 1313), was the son of Count Frederick I and Beatrix of Horstmar. He inherited the Westphalian county on his father's death in 1282. In 1302 he governed the county jointly with his brother Frederick II.

By his wife Mechthild, who died in 1304, he had nine children. When he died in 1313 his share passed to his son Otto I, who ruled until 1347. Conrad was buried at Marienfeld Abbey.