| Westfall High School | |
| Type: | Public |
| Streetaddress: | 19463 Pherson Pike |
| City: | Williamsport |
| State: | Ohio |
| Country: | USA |
| Zipcode: | 43164 |
| Coordinates: | 39.6553°N -83.1211°W |
| Information: | (740) 986-2911 |
| Grades: | 9-12 |
| Enrollment: | 422 (2018–19)[1] |
| Staff: | 23.00 (FTE) |
| Ratio: | 18.35 |
| Principal: | Jason Fife |
| Mascot: | Mustang |
| District: | Westfall Local Schools |
| Superintendent: | Jeff Sheets |
| Viceprincipal: | Christian Meister |
| Athletics: | Scioto Valley Conference |
| Newspaper: | ECHO |
| Website: | Westfall High School |
Westfall High School is a public high school near Williamsport, Ohio, United States. It is the only high school in the Westfall Local School District. The Westfall Local School District coverage area is mostly rural, and includes all or portions of six townships situated in the western part of Pickaway County. Westfall Middle School and Westfall High School are now combined with a community building.
On March 2, 1977, Gordon Massie a teacher at the school received a letter from an anonymous person claiming to have known about secret affairs in which he participated in. This is believed to be the first occurrence of the Circleville Letters. A series of threatening letters that terrorised the nearby town of Circleville from the 1970s until the 1990s.