Map of the Federation of South Arabia
Wahidi Balhaf (Arabic: واحدي بالحاف Wāḥidī Bālḥāf), or the Wahidi Sultanate of Balhaf (Arabic: سلطنة الواحدي بالحاف Salṭanat al-Wāḥidī Bālḥāf), was one of several Wahidi states in the British Aden Protectorate. It was also part of the Federation of Arab Emirates of the South, and its successor, the Federation of South Arabia when it was known simply as Wahidi. Its capital was Balhaf on the Gulf of Aden coast and it included the inland town of Azzan (formerly the seat of a separate Wahidi Sultanate of Azzan). It was abolished in 1967 upon the founding of the People's Republic of South Yemen and is now part of the Republic of Yemen.