Grover Cleveland "Pappy" Washabaugh (September 21, 1892 – March 16, 1973) was an American football and basketball coach.

[2] Washabaugh's first coaching experience came at Woodlawn High School in Aliquippa, Pennsylvania, where he mentored the basketball team and taught physical education.

[4] From 1927 to 1936, he served as South High's head football and basketball coach.

[2] Washabaugh continued to serve as the basketball coach until 1956 and posted a 296–129 record.

[3] Washabaugh died on March 16, 1973, at Jameson Memorial Hospital in New Castle, Pennsylvania, at the age of 80.