Pornsak
Pornsak (Thai: พรศักดิ์, romanized: Phonsak) is a given name of Thai origin. People with that name include:
- Pornsak Pongthong, a professional footballer in Thailand
 - Pornsak Prajakwit, a Thailand-born media personality in Singapore
 - Pornsak Songsaeng, a male Mor lam singer in Thailand