Homer "Si" Blankenship (August 4, 1902 – June 22, 1974) was an American pitcher in Major League Baseball with the Chicago White Sox and Pittsburgh Pirates.

[1] Blankenship, a Cherokee Native American,[2] was born in Bonham, Texas, and attended high school in Ada, Oklahoma.

He is a year younger than his brother Ted Blankenship, who pitched in the major leagues for 9 seasons.

Homer made his MLB debut for the White Sox in 1922, at the age of 20.

This biographical article relating to an American baseball pitcher born in the 1900s is a stub.