Zane William Smith (born December 28, 1960 in Madison, Wisconsin) is a former American Major League baseball player.
Smith, a left-handed pitcher, played collegiately at Indiana State University. He was drafted by the Atlanta Braves in the 3rd round of the 1982 amateur draft and made his Major League debut on September 10, 1984 for Atlanta. His first successful season was 1987 with the Braves, when he led the team with 15 wins, nearly twice as many as any other Braves pitcher on a team with only 69 wins. He was among the league leaders in wins (tied 5th), innings pitched (5th), games started (tied 1st), complete games (4th) and shutouts (tied 3rd).
Smith was traded from Atlanta to the Montreal Expos on July 2, 1989 for Sergio Valdez, Nate Minchey and minor leaguer Kevin Dean. Just over a year later, on August 8, 1990, Smith was traded to the Pittsburgh Pirates for Scott Ruskin, Willie Greene and Moisés Alou. The trade allowed the Pirates to hold off the New York Mets down the stretch and win the National League Eastern Division pennant. Smith contributed by winning 6 games, 3 of them complete games, 2 of those shutouts, while losing only 2, and compiling a 1.30 ERA. It was during this season that Smith had his best performance, a 1 hit complete game shutout of the Mets in the first game of a doubleheader sweep that gave the Pirates a 2.5 game lead over the Mets.