Pontiac Township High School (PTHS) is a public high school for grades 9-12 in Pontiac, Illinois, United States.

PTHS offers over 100 courses, including nine AP classes.

It is a part of Pontiac Township High School District #90.

Sports include: Fall Cheerleading Cross Country (G) Cross Country (B) American football Golf (G) Golf (B) Swimming (G) Tennis (G) Volleyball Winter Basketball (G) Basketball (B) Cheerleading Swimming (B) Wrestling Spring Baseball Softball Tennis (B) Track (G) Track (B) The Indians won the 1993 3A state championship and became 5A runner-up in the 2002 football campaign.

Pontiac hosts the United States' oldest high school basketball Holiday Tournament.