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.

[1] # denotes interim head coach

This biographical article relating to a college football coach first appointed in the 1910s is a stub.