George Henry "Admiral" Schlei (January 12, 1878 - January 24, 1958) was a Major League Baseball catcher.

He played all or part of eight seasons in the majors, between 1904 and 1911, for the Cincinnati Reds and New York Giants.

He was the first Reds catcher to wear shin guards.

[1] Schlei attended St. Xavier High School in Cincinnati.

This biographical article relating to a United States baseball catcher born in the 1870s is a stub.