Morris Webster Martin (September 3, 1922 – May 24, 2010), nicknamed "Lefty", was an American professional baseball player.

Martin was born in Dixon, Missouri; he was listed as standing 6 feet (1.8 m) tall and weighing 173 pounds (78 kg).

Now a member of the Brooklyn farm system, he had his first MLB trial with the pennant-bound 1949 Dodgers, appearing in ten games, including four starts.

After spending 1950 back in the minor leagues, he was selected by the Philadelphia Athletics in the Rule 5 draft and had a sparkling 1951 campaign, winning 11 of 15 decisions (.733) for a sixth-place team that played at only a .455 pace over the entire season.

In his 250-game MLB career, Martin posted a 38–34 won–lost mark, 15 saves, eight complete games and a 4.29 earned run average.