Charles B. Studley (born January 17, 1929) is a former American football coach.

Studley finished with a 2–8 record in his only job as an NFL head coach.

He was in charge of the defense under Bill Walsh and was responsible for the 49ers being able to hold off the Cincinnati Bengals' rally in Super Bowl XVI.

Studley played guard on the 1952 Rose Bowl team at the University of Illinois at Urbana–Champaign.

This biographical article relating to a college football coach first appointed in the 1960s is a stub.