| Stephan Rittau | |
| Birth Date: | 27 December 1891 |
| Birth Place: | Wongrowitz, Province of Posen, German Empire |
| Death Place: | Rzhev, Soviet Union |
| Allegiance: | |
| Branch: | Army |
| Serviceyears: | 1911–42 |
| Rank: | Generalleutnant |
| Commands: | 129th Infantry Division |
| Battles: | World War II |
| Awards: | Knight's Cross of the Iron Cross |
Stephan Rittau (27 December 1891 – 22 August 1942) was a general in the Wehrmacht of Nazi Germany during World War II. He was a recipient of the Knight's Cross of the Iron Cross. Rittau was killed on 22 August 1942 in Rzhev, Soviet Union.
. Walther-Peer Fellgiebel . 2000 . 1986 . Die Träger des Ritterkreuzes des Eisernen Kreuzes 1939–1945 — Die Inhaber der höchsten Auszeichnung des Zweiten Weltkrieges aller Wehrmachtteile . The Bearers of the Knight's Cross of the Iron Cross 1939–1945 — The Owners of the Highest Award of the Second World War of all Wehrmacht Branches . German . Friedberg, Germany . Podzun-Pallas . 978-3-7909-0284-6.