Tunb or Tonb () may refer to:
Tunb District, an administrative subdivision of Iran Tunb Rural District, an administrative subdivision of Iran Tonb Bariku, a village in Hormozgan Province, Iran Tonb-e Bongeru, a village in Hormozgan Province, Iran Tonb-e Jaki, a village in Hormozgan Province, Iran Tonb-e Siyak, a village in Hormozgan Province, Iran Tunb-e Bozorg, a village in Tunb Rural District located on Greater Tunb Island Greater and Lesser Tunbs, islands in the Persian Gulf