Istana Batu Royal Museum

Istana Batu Royal Museum is a former royal palace turned museum in Kota Bharu, Kelantan, Malaysia. Built in 1939 as the residence of Sultan Yahya Petra, it served as the Kelantan royal palace until 1969. Converted into a royal museum in 1991, it displays Kelantan royal regalia, costumes, photographs and artefacts documenting the history of the Kelantan Sultanate. The building is noted for its distinctive architecture blending traditional Malay and Art Deco influences.

Visitors can explore a two-storey former palace building set in landscaped grounds in central Kota Bharu. Inside, galleries display royal regalia, ceremonial costumes, furniture, photographs, and gifts to the Kelantan Sultanate. The architecture combines traditional Kelantan Malay elements with Art Deco details. Visitors walk through former royal living quarters and exhibition halls that illustrate the lifestyle and history of the Kelantan royal family.

Built in 1939 during the reign of Sultan Ismail ibni Sultan Muhammad IV as a residence for his son Tengku Yahya Petra (later Sultan Yahya Petra). Designed with influence from Tengku Muhammad Petra, it served as the official Kelantan royal palace from 1939 to 1969. In 1991 it was converted into the Royal Museum to preserve and display the heritage of the Kelantan Sultanate.

The museum preserves the cultural heritage and traditions of the Kelantan Sultanate, showcasing royal customs, ceremonial dress, regalia and historical photographs that reflect the continuity of Malay royalty in Kelantan. It serves as an important cultural institution for understanding Kelantanese royal history and identity.