Rubén Óscar Valdez Ferrero (born 25 June 1946) is a Spanish former professional football player and manager.

[1] Valdez began his playing career in 1967 with Almirante Brown of the Argentine 2nd division.

In 1979 Valdez left Valencia to play for CD Castellón but before the end of the year he had returned to Argentina to join Kimberley where he made 5 appearances, including a famous 2–1 victory against River Plate on 9 September 1979.

His final international appearance came on 13 February 1974 in a 1–0 defeat to Yugoslavia in Frankfurt in a qualification game for the 1974 FIFA World Cup.

[1] Platense have a filial club in Spain which has adopted the name Peña Calamar Óscar Valdez in his honour.