Roberto Muñoz Rodríguez (February 5, 1941 – September 24, 2012) was a Venezuelan professional baseball pitcher. He played in Major League Baseball (MLB) for the Kansas City / Oakland Athletics, San Diego Padres, and Chicago Cubs. He played in the United States under the name of Roberto Rodriguez.
Born in Caracas, Rodríguez carried a varied repertoire that relied on intelligence over raw explosiveness. He had a variable-speed fastball (reaching 90 MPH), a slider, a tough curveball, and a circle change-up as his most effective offering.
Once considered one of the best prospects in the Kansas City Athletics minor league system, he also pitched for the San Diego Padres and Chicago Cubs organizations.
Rodríguez was signed by the Athletics as an amateur free agent in 1963, spending seven minor league seasons from 1964–1970. He posted a 42–28 record and a 3.15 earned run average in 124 pitching appearances before being promoted to the big team in May 1967. He returned to the minors in early June and was recalled two months later.
He went 1–1 with a 3.57 ERA and two saves in 15 games (five starts).
After that, Rodríguez would remain in the organization after the team was renamed the Oakland Athletics in 1968. He returned to the majors in 1970, pitching for the Athletics, Padres and Cubs in the same season. The mark was later matched by Luis Aponte (1973–74/1996–97) and Giovanni Carrara (1990–91/2009–10).
After retiring he worked as a pitching coach in his Venezuelan homeland. He also served as an instructor in the baseball academy operated by Carlos Guillén in Maracay. In 2011, he gained induction into the Venezuelan Baseball Hall of Fame.