| Reza Ahadi | |
| Fullname: | Reza Nadef Ahadi |
| Birth Date: | 1962 11, mf=yes |
| Birth Place: | Tehran, Iran |
| Death Place: | Tehran, Iran |
| Position: | Midfielder |
| Youthyears1: | 1979–1981 |
| Youthclubs1: | Esteghlal |
| Years1: | 1980–1986 |
| Clubs1: | Esteghlal |
| Years2: | 1986–1987 |
| Clubs2: | Rot-Weiss Essen |
| Caps2: | 8 |
| Goals2: | 1 |
| Years3: | 1987–1992 |
| Clubs3: | Esteghlal |
| Years4: | 1992–1994 |
| Clubs4: | Bank Tejarat |
| Years5: | 1994–1995 |
| Clubs5: | Zob Ahan |
| Nationalyears1: | 1982–1994 |
| Nationalteam1: | Iran |
| Nationalcaps1: | 13 |
| Nationalgoals1: | 2 |
| Manageryears1: | 2001–2002 |
| Managerclubs1: | Esteghlal (youth) |
| Manageryears2: | 2008 |
| Managerclubs2: | Esteghlal Ahvaz |
| Manageryears3: | 2008–2009 |
| Managerclubs3: | Aboomoslem |
| Manageryears4: | 2009 |
| Managerclubs4: | Shahdari Zanjan |
| Manageryears5: | 2009 |
| Managerclubs5: | Kowsar |
| Manageryears6: | 2010–2011 |
| Managerclubs6: | Paykan (assistant) |
| Manageryears7: | 2011 |
| Managerclubs7: | Payam Mashhad[1] |
Reza Ahadi (Persian: رضا احدی, November 30, 1962 – January 17, 2016) was an Iranian footballer who played as a midfielder for the Iran national team and Tehran's Esteghlal. He died following an internal infection and liver problems at the age of 53.
Ahadi played for Iranian club Esteghlal FC for most of his career. He was among the first Iranian players to pursue a career in European football as he joined Germany’s Rot-Weiss Essen in 1986 where he scored a goal in his eight appearances. He was a member of the Iran national football team from 1982–1984.
The former Esteghlal captain was called up 13 times to the national team and scored twice. He was the manager of a handful of teams such as Esteghlal Ahvaz, Paykan, Kowsar and Payam Mashhad during his short coaching career.
He had introduced a number of Iranian players, including Vahid Talebloo, Khosro Heydari and Andranik Teymourian to professional soccer.