Víctor Jesús Martínez (born December 23, 1978), also known by his nickname "V-Mart", is a Major League Baseball switch-hitting catcher and first baseman who plays for the Detroit Tigers.

Martínez was signed by the Indians as an amateur free agent in 1996. He was named the Indians 2001 and 2002 Minor League Player of the Year (receiving the "Lou Boudreau Award"). 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 played for the 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.