James Martin Lewis (born October 12, 1955) is an American former professional baseball pitcher. He played during four seasons in Major League Baseball for the Seattle Mariners, New York Yankees, and Minnesota Twins.

Seattle Mariners

Lewis was signed by the Mariners as an amateur free agent in 1977 and played his first professional season with their Class A-Advanced Stockton Mariners in 1978, and his last with Seattle and their Triple-A Calgary Cannons in 1985.

New York Yankees

On November 1, 1979, Lewis was traded, along with Ruppert Jones, to the New York Yankees for Rick Anderson, Jim Beattie, Juan Beniquez, and Jerry Narron. He played one game for them in 1982.

Minnesota Twins

After the 1982 season, Lewis was drafted by the Minnesota Twins in the 1982 minor league draft, and played 6 games for them in 1983.

Seattle Mariners (second stint)

On February 21, 1984, Lewis re-signed with the Seattle Mariners after becoming a free agent after the 1983 season. After appearing in 2 games during the 1985 season, he was released.