|Is||Athlete Football player Association football player|
|Birth||30 June 1988, Oliveira do Hospital, Coimbra, Portugal|
João Paulo Neto Martins (born 30 June 1988) is a Portuguese former professional footballer who played as a midfielder.
Born in Oliveira do Hospital, Coimbra District, Martins played most of his youth football with Sporting CP, having arrived at the club's youth system in 2000 at the age of 12. From 2007 to 2009 he would be loaned to three teams, C.D. Olivais e Moscavide and Atlético Clube de Portugal in the third division and S.C. Olhanense in the second (one league match during the entire season for the latter club).
Released by Sporting in summer 2009, Martins resumed his career mainly in the third level. He returned to the second tier in the 2012–13 campaign, signing for Associação Naval 1º de Maio.
All youth levels comprised, Martins won 50 caps for Portugal and scored three goals. His first for the under-21 team arrived on 18 November 2008, when he played the last 25 minutes of the 4−1 friendly win over Spain in Cartaxo.
Martins' older brother, Carlos, was also a footballer and a midfielder. He also graduated from Sporting's youth academy but with much more individual success, going on to also represent S.L. Benfica and Portugal.