PEK (disambiguation)
Beijing Capital International Airport (IATA: PEK) is an international airport serving Beijing, China.
PEK may also refer to:
- Polyetherketones, an engineering plastic
 - Pomeranian Evangelical Church (Pommersche Evangelische Kirche), a Protestant church in Mecklenburg-Western Pomerania, Germany
 - Program for Evaluating Complementary Medicine, the English translation of Programme Evaluation Komplementärmedizin (PEK)
 - Phantom Evil King, a boss in the video game Okage