Rodrigo López Muñoz (born December 14, 1975 in Tlalnepantla de Baz, Mexico State, Mexico) is a Major League Baseball pitcher for the Chicago Cubs. López was a pitcher in the Mexican League in 1995 when the San Diego Padres purchased his contract.
He worked his way up to the major leagues with the Padres, when he made his debut on April 29, 2000. López did not appear in the majors in 2001, but spent the entire year with the High Single-A Lake Elsinore Storm and Triple-A Portland Beavers. He became a free agent after the 2001 season.
López joined the Baltimore Orioles in 2002 where he went 15–9 and in the process was runner-up for AL Rookie of the Year. 2003 was a disappointment for López, as he went 7–10 in an injury-marred campaign. In 2004, he was moved to middle relief but pitched his way back into the starting rotation. That year, his record was 14–9. On January 12, 2007, he was traded to the Colorado Rockies for minor leaguers Jason Burch and Jim Miller. López underwent Tommy John surgery on August 22, 2007, and became a free agent at the end of the season.