- Source: Jack Hollenback
- Jack Hollenback
- Bill Hollenback
- Penn State Nittany Lions football
- List of Penn State Nittany Lions head football coaches
- Joe Paterno
- List of Penn State Nittany Lions football seasons
- 1910 Penn State Nittany Lions football team
- Bill O'Brien (American football)
- James Franklin (American football coach)
- Rip Engle
John Coffey Hollenback (August 10, 1884 – 1959) was an American football player and coach. He served as the head football coach at Franklin & Marshall College from 1908 to 1909, Pennsylvania State University in 1910, and Pennsylvania Military College, now Widener University in 1911, compiling a career college football record of 21–11–3.
Hollenback was the older brother of Bill Hollenback, who was also a head football coach at Penn State. On December 28, 1910, he married Lulu Rowland, the daughter of Charles Hedding Rowland.