PTSA may refer to:
- Kosrae International Airport, an airport serving Kosrae, the easternmost state of the Federated States of Micronesia by ICAO code
- p-Toluenesulfonic acid
- Parent-Teacher-Student Association
- Philippine Tiong Se Academy, the oldest Chinese school in the Philippines. (est. 1899)
This disambiguation page lists articles associated with the title PTSA.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: