Víctor Jesús Martínez (born December 23, 1978) is a switch-hitting catcher and first baseman for the Boston Red Sox of Major League Baseball.

He was signed by the Indians as an amateur free agent in 1996 and after a pair of minor league MVP awards and batting titles in 2001 and 2002, he made his debut with Cleveland as a September call-up on September 10, 2002.

In 2003, Martínez was busy between Triple-A Buffalo Bisons and the Indians. He finished with a combined .315 batting average, hitting at a .349 clip in August and September with the big league club. Exhibiting knowledge of the strike zone and an ability to make contact, he reduced his strikeout totals and produced a combined .376 on base percentage. He also drove in 63 runs, hitting .323 with runners in scoring position, and was selected to participate in the All-Star Futures Game played at Chicago's U.S. Cellular Field. From 2001–03, the Venezuelan slugger batted a combined .330 with 40 home runs and 194 RBI.