José Manuel ("Chema") Martínez Fernández (born 22 October 1971 in Madrid) is a Spanish long-distance runner.

He has competed at the IAAF World Cross Country Championships on numerous occasions, with his best performance of 17th coming at the 2003 edition.

[2] Martínez took third at the European Cup 10000m in early June, although he was some distance behind the winner Mo Farah of Great Britain.

He won the silver medal but was satisfied with the performance as winner Viktor Röthlin set a fast pace in the hot race.

[5] He began his 2011 season at the European Cup 10000m and finished as the runner-up behind Yousef El Kalai.