Osvaldo David Martínez Arce (born 8 April 1986) is a former Paraguayan professional footballer who played as a midfielder.

He made his league debut for the club on 30 July 2011 in a 3–0 loss to Santos Laguna, coming on for Diego Ordaz in the 59th minute.

In January 2017, Martinez was included in part of a swap deal between America and Santos Laguna.

He made his league debut for Santos Laguna on 7 January 2017 in a 0–0 draw with Tigres UANL, coming on for Djaniny in the 71st minute.

He made his debut on 15 October 2008, in a FIFA World Cup 2010 qualifying match in Asunción against Peru.