Sultan of Ternate Mosque, Royal mosque in Ternate City, Indonesia

The Sultan of Ternate Mosque is a place of worship in Ternate city with a five-tiered roof made of corrugated steel, supported by four main posts and twelve supporting columns arranged in a square layout. The building stands as the primary religious center of the Ternate Sultanate.

The present building dates from around 1606, attributed to the ninth Sultan Hamzah, and probably replaced a 16th-century mosque from the sultanate's powerful era under Sultan Khairun and Sultan Baabullah. It stands about 100 metres southeast of the Kedaton, built of stone bound with a mixture of kalumpang tree bark. The roof's original sago thatch was later replaced with corrugated steel, and parts of the surrounding wall and additional buildings were demolished in restorations.

The mosque's name links it to the Ternate Sultanate, whose court rituals were held here. Each year on the 16th night of Ramadan, the Malam Qunut, the Sultan and his family arrive in a palanquin for the tarawih prayer, accompanied by the Bobato Akhirat, the sultanate's religious council. Four muezzins call the adhan together, and a totobuang ensemble of about twelve children in adat dress plays before the palanquin.

Only men may enter; women are not admitted, a rule kept to protect the mosque's sanctity. Men must wear trousers, not a sarong, and a head covering (cap or headscarf). The Balakusu guard enforces this at prayer times, turning away anyone in a sarong.

During the 16th night of Ramadan, known as Malam Qunut, the Sultan arrives in a palanquin to perform special prayers. This rare ceremonial moment connects the sultanate's past with today's spiritual practices.