Kaminahu (Arabic: مملكة كمنه; Old South Arabic: 𐩫𐩣𐩬𐩠𐩥 kmnhw; modern Kamna) is the name of an ancient South Arabian city in the northern al-Jawf region of present day Yemen, 107 km north-east of Sana'a at about 1100 meters above sea level.
In early times Kaminahu like other towns in al-Jawf such as Ḥaram and Nashan, was an independent city state.