Tomás Ernesto Pineda Nieto (born January 21, 1946) is a retired football player from El Salvador.

Nicknamed el Flaco (the skinny one), Pineda represented El Salvador at the 1970 FIFA World Cup in Mexico, though he did not play a single match.

[1] He did appear in 2 qualifying matches for the 1978 FIFA World Cup,[2] but had been playing second fiddle to Raúl Magaña and Gualberto Fernández during his career.

After retiring as a player, Pineda went into real estate and has worked as an architect and as an administrator at an automotive company.

This biographical article related to Salvadoran association football is a stub.