Detenamo is a Nauruan surname. Notable individuals with the surname include:
Itte Detenamo (born 1986), Nauruan weightlifter Lovelite Detenamo (born 1993), Nauruan sprinter Quincy Detenamo (born 1979), Nauruan former weightlifter and murderer Vinson Detenamo (born 1954), Nauruan politician