Hollis John "Sloppy" Thurston (June 2, 1899 – September 14, 1973) was an American professional baseball pitcher.

He played in Major League Baseball (MLB) for the St. Louis Browns, Chicago White Sox, Washington Senators, and Brooklyn Robins/Dodgers between 1923 and 1933.

[1] Thurston was born in Fremont, Nebraska, and graduated from John H. Francis Polytechnic High School.

[3] He played professional baseball from 1920 to 1938, spending time in the minor leagues when not in the majors.

He finished his nine-year MLB career with a win–loss record of 89–86, a 4.24 earned run average, and 306 strikeouts.