Cop4

Cop4 or COP4 may refer to:
 * 1998 United Nations Climate Change Conference
 * Cubebol synthase, an enzyme
 * Beta-copaene synthase, an enzyme
 * Beta-cubebene synthase, an enzyme
 * (+)-sativene synthase, an enzyme


 * the Transport Canada LID for Orilla/Pumpkin Bay Water Aerodrome