Henry "Hi" Jasper (May 24, 1886 – May 22, 1937) was a pitcher in Major League Baseball. He played for the Chicago White Sox, St. Louis Cardinals, and Cleveland Indians. Jasper began his professional career in 1909 with the Jacksonville Braves of the Central Association. He had a .218 batting average in 114 games for the Braves. The following season, he played for the Dubuque Dubs of the Illinois–Indiana–Iowa League, and played in 61 games for them. In 1912, he spent the season with the of the Oklahoma State League. While with the Indians, Cincinnati Reds manager Hank O'Day brought him in for a trial to make the major league roster, which was unsuccessful. He returned to the Dubs as a pitcher in 1913, and had a win-loss record of 13-6 in 20 games.