Guy Isbel Tutwiler (July 17, 1888 – August 15, 1930), nicknamed "King Tut", was an American baseball player.

He played in Major League Baseball for 27 of those games with the Detroit Tigers in 1911 and 1913.

The bulk of his career was in the minor leagues, including five seasons with the Providence Grays.

[1] He also played 13 seasons in the minor leagues, including stints with the Hattiesburg Timberjacks (1910–1911), Chattanooga Lookouts (1912), Providence Grays (1912, 1914–1917), Mobile Bears (1919–1920), Little Rock Travelers (1921), Memphis Chickasaws (1922) and Augusta Tygers (1924).

His most productive year as a baseball player was 1913 when he compiled a .345 batting average, .552 slugging percentage and 57 extra base hits in 115 games with the Fort Wayne Champs.