The Sultanate of Langkat was a Muslim state located in modern Langkat Regency, North Sumatra.
Delhi Sultanate | Sultanate of Darfur | Sultanate of Rum | Sultanate of Rûm | Langkat Regency | Sultanate of Damagaram | Madurai Sultanate | Johor Sultanate | Warsangali Sultanate | Sultanate of Rüm | Sennar (sultanate) | Mataram Sultanate | Kilwa Sultanate | Ifat Sultanate | Gujarat Sultanate | Delhi sultanate | Aceh Sultanate |