PT Sir (transl. Physical Training Sir) is a 2024 Indian Tamil-language social drama film written and directed by Karthik Venugopalan, and produced by Ishari K. Ganesh. The film stars Hiphop Tamizha Adhi in the titular role, alongside Kashmira Pardeshi, Anikha Surendran, Prabhu, Ilavarasu, Pandiarajan, Thiagarajan and Munishkanth.

The film was officially announced in November 2022 under the tentative title HHT7, as it is Aadhi's seventh film as the lead actor, and the official title was announced in January 2023. Principal photography commenced the same month. It was predominantly shot in Chennai and Erode, and wrapped by late-February 2024. The film has music composed by Hiphop Tamizha, cinematography handled by Madesh Manickam and editing by Prasanna GK.

PT Sir was theatrically release on 24 May 2024. The film received mixed to positive reviews from critics and become a decent hit at the box-office.