William Robert Wight (April 12, 1922 – May 17, 2007) was an American pitcher in Major League Baseball (MLB) who played from 1946 through 1958 for the New York Yankees (1946–47), Chicago White Sox (1948–50), Boston Red Sox (1951–52), Detroit Tigers (1952–53), Cleveland Indians (1953, 1955), Baltimore Orioles (1955–57), Cincinnati Reds (1958) and St. Louis Cardinals (1958).

Listed at 6 feet 1 inch (1.85 m) tall and 180 pounds (82 kg), Wight batted and threw left-handed.

Wight graduated from Oakland's McClymonds High School and entered professional baseball in the Yankees' organization in 1941.

He served in the United States Navy during World War II and missed three full seasons (1943–45).

In a big-league career that lasted all or parts of 12 seasons, Wight posted a 77–99 won–lost record with 574 strikeouts and a 3.95 ERA in 347 appearances, including 198 starts, 66 complete games, 15 shutouts and eight saves in 1,563 innings of work.