Taq may refer to: Taq, Iran, a village in Semnan Province, Iran Taq polymerase, a heat-stable enzyme used in polymerase chain reaction, or Thermus aquaticus, the species of bacteria from which the polymerase is naturally derived The artist Taku Sakakibara, better known as TaQ Trade and Quote (TAQ), databases on the New York Stock Exchange and NASDAQ The African Queen (film) Terminus ante quem, the latest possible date for a specific event