| Marvin Rittmüller | |
| Fullname: | Marvin Lee Rittmüller |
| Height: | 1.77 m |
| Birth Date: | 1999 3, df=yes |
| Birth Place: | Erfurt, Germany |
| Position: | Defender |
| Currentclub: | Eintracht Braunschweig |
| Clubnumber: | 18 |
| Youthyears1: | 2004–2016 |
| Youthclubs1: | Rot-Weiß Erfurt |
| Youthyears2: | 2016–2018 |
| Youthclubs2: | 1. FC Köln |
| Years1: | 2018–2020 |
| Clubs1: | 1. FC Köln II |
| Caps1: | 53 |
| Goals1: | 2 |
| Years2: | 2020–2023 |
| Clubs2: | 1. FC Heidenheim |
| Caps2: | 36 |
| Goals2: | 0 |
| Years3: | 2023– |
| Clubs3: | Eintracht Braunschweig |
| Caps3: | 27 |
| Goals3: | 0 |
| Nationalyears1: | 2016–2017 |
| Nationalteam1: | Germany U18 |
| Nationalcaps1: | 4 |
| Nationalgoals1: | 0 |
| Pcupdate: | 22 May 2024 |
| Ntupdate: | 14:14, 27 September 2020 (UTC) |
Marvin Lee Rittmüller (born 7 March 1999) is a German footballer who plays as a defender for Eintracht Braunschweig.
Rittmüller made his professional debut for 1. FC Heidenheim in the 2. Bundesliga on 27 September 2020, coming on as a substitute in the 57th minute for Florian Pick against FC St. Pauli, with the away match finishing as a 2–4 loss.[1]