PEK is an IATA code for Beijing Capital 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

See also Pek (disambiguation)