Taq

Taq or TAQ may refer to:

• Taq, Iran, a village in Semnan Province
• Taq, a medieval fortress in the historical region of Sistan, possibly the ruins at Shahr-i Gholghola in present-day Afghanistan
• Taq polymerase, a heat-stable enzyme used in polymerase chain reaction
  • Thermus aquaticus, the species of bacteria from which the polymerase is naturally derived
• Terminus ante quem, the latest possible date for a specific event
• Trade and Quote (TAQ), a form of high frequency data used by stock exchanges