Tiridates was the name of three members of the Arsacid Dynasty of Parthia:

• Tiridates I of Parthia was the brother of Arsaces I.
• Tiridates II of Parthia ruled c. 30–26 BC
• Tiridates III of Parthia ruled c. AD 35–36

Tiridates or Trdat was the name of four kings of Armenia:

• Tiridates I of Armenia ruled c. 56–59
• Tiridates II of Armenia ruled c. 62–72
• Tiridates III of Armenia ruled c. 197–238
• Tiridates IV of Armenia ruled c. 283–330