Melvin Mora (born February 2, 1972 in Agua Negra, Yaracuý State, Venezuela), affectionately nicknamed Melmo or Melvy, is a Major League Baseball third baseman for the Baltimore Orioles.

From his debut in 1999 to 2003, Melvin Mora was known as a utility player, playing all three outfield positions, shortstop, and second base. In 2004, Mora was designated the everyday third baseman, a position he has played regularly ever since.

Mora was signed out of Venezuela in 1991. After spending seven years in the Astros minors system and couple of months in CPBL's Mercuries Tigers, he signed as a free agent with the Mets in 1998 and made his major league debut in the 1999 season. With his ability to play all three outfield positions, shortstop, second base and third, Mora was considered a valuable man to have around.