Jack Warner may refer to:
John Ralph Warner (August 29, 1903 – March 13, 1986) was a Major League Baseball infielder who played eight seasons in the major leagues with the Detroit Tigers (1925–1928), Brooklyn Robins (1929–1931), and Philadelphia Phillies (1932). Born in Evansville, Indiana, Warner was a right-handed hitting infielder who debuted in the major leagues at age 22 on September 24, 1925. He became the Tigers' regular third baseman for the 1926 and 1927 seasons. His best year was 1927, when he played 138 games at third base and finished among the American League leaders in at bats (559), outs (431), and hit by pitch (6). In the 1927 season, he also scored 78 runs and had 149 hits, including 32 extra base hits, 45 RBIs, and 14 stolen bases. Warner did not hit for high average (.250 career average), but he was adept at drawing walks and had on-base percentages of .381, .342, and .330 in his first three major league seasons. In three seasons with the Robins, Warner became a utility infielder, playing in 47 games in three years. He finished his career with the Phillies in 1933, where he played in 107 games, mostly at second base, but saw his batting average drop to .224. Warner played his final major league game on September 30, 1933.
Jack Dyer Warner (born July 12, 1940, at Brandywine, West Virginia) is an American former Major League Baseball relief pitcher.
Signed by the Chicago Cubs as an amateur free agent in 1958, Warner appeared in parts of four seasons for the Cubs from 1962 to 1965. He pitched in a total of 33 games for Chicago, with a career record of 0–2, 54.2 innings pitched, 23 strikeouts, 13 games finished, and an ERA of 5.10.
Perhaps his best game was one in which he was the losing pitcher. This took place in the second game of a doubleheader at Forbes Field on July 21, 1963. Warner pitched scoreless ball in the bottom of the 11th, 12th, and 13th innings against the Pittsburgh Pirates, but gave up a run with two out in the bottom of the 14th for a 6–5 loss. Warner also achieved his only major league hit in this game, a single in the top of the 14th against eventual winning pitcher Don Cardwell.
John Joseph Warner (August 15, 1872 – December 21, 1943), nicknamed "Jack", was a Major League Baseball catcher who caught over 1,000 major league games in 14 seasons with the Boston Beaneaters (1895), Louisville Colonels (1895–96), New York Giants (1896–1901, 1903–04), Boston Americans (1902), St. Louis Cardinals (1905), Detroit Tigers (1905–06), and Washington Senators (1906–08).
In 1906, Warner was part of the first season-long platoon arrangement in baseball, sharing time at catcher with Fred Payne and Boss Schmidt.
In 1,0073 major league games, Warner had a .249 batting average and .303 on-base percentage. He had 870 hits, 348 runs scored, 303 RBIs, 122 extra base hits, and 83 stolen bases. Warner was among the league leaders in being hit by a pitch 3 times and ranks 84 all-time with 91 times hit by a pitch. Warner was born in New York City and died in Far Rockaway, New York.
John "Jack" Warner (1898 – 23 August 1950) was an English professional association footballer who played as an inside forward.
Jack Warner was a British sports shooter. He competed in the stationary target small-bore rifle event at the 1908 Summer Olympics.