Lake Rotoroa (Māori: "long lake") may refer to the following New Zealand lakes:
- Lake Rotoroa (Northland)
- Lake Rotoroa (Tasman)
- Lake Rotoroa (Hamilton, New Zealand) (or "Hamilton Lake"), Hamilton City, Waikato, New Zealand
- Lake Rotoroa (Waitomo), Waitomo District, Waikato, New Zealand
