| Marian Dinu | |
| Birth Date: | 1965 8, df=yes |
| Birth Place: | Adamclisi, Romania |
| Height: | 1.89 m |
| Position: | Defender |
| Youthclubs1: | FC Constanța |
| Years1: | 1985–1998 |
| Clubs1: | Farul Constanța |
| Caps1: | 284 |
| Goals1: | 8 |
| Years2: | 1987 |
| Clubs2: | → Unirea Slobozia (loan) |
| Caps2: | ? |
| Goals2: | ? |
| Years3: | 1998–2000 |
| Caps3: | 34 |
| Goals3: | 6 |
| Totalcaps: | 318 |
| Totalgoals: | 14 |
| Manageryears1: | 2000–2002 |
| Manageryears2: | 2004–2005 |
| Manageryears3: | 2005 |
| Manageryears4: | 2005–2009 |
| Manageryears5: | 2010–2013 |
| Manageryears6: | 2013 |
| Manageryears7: | 2013 |
| Manageryears8: | 2014 |
| Manageryears9: | 2015 |
| Manageryears10: | 2015–2016 |
| Manageryears11: | 2016 |
| Manageryears12: | 2016–2017 |
| Manageryears13: | 2017–2018 |
| Manageryears14: | 2018–2019 |
| Managerclubs1: | Farul Constanța (assistant) |
| Managerclubs2: | Farul Constanța (assistant) |
| Managerclubs3: | Farul Constanța (caretaker) |
| Managerclubs4: | Oțelul Galați (assistant) |
| Managerclubs5: | Pandurii Târgu Jiu (assistant) |
| Managerclubs6: | Oțelul Galați (assistant) |
| Managerclubs7: | Oțelul Galați (caretaker) |
| Managerclubs8: | Pandurii Târgu Jiu (assistant) |
| Managerclubs9: | Farul Constanța |
| Managerclubs10: | Târgu Mureș (assistant) |
| Managerclubs11: | Poli Timișoara (assistant) |
| Managerclubs12: | Pandurii Târgu Jiu (assistant) |
| Managerclubs13: | Farul Constanța (assistant) |
| Managerclubs14: | Farul Constanța (assistant) |
Marian Dinu (born 15 August 1965) is a Romanian football coach and former player. As a coach, he works with Petre Grigoraș, being his assistant coach at Farul Constanţa, Oţelul Galaţi, Pandurii Târgu Jiu, ASA Târgu Mureș and Poli Timișoara.
Dinu played for Farul Constanța 284 times and scored 7 times, being the second, after Antonescu, in the top of presences. He also played for Callatis Mangalia and Unirea Slobozia.