Bolkiah ibni Sulaiman (Jawi: بلقية ابن سليمان‎; died 17 July 1524) or commonly known as Nakhoda Ragam (Jawi: ناخودا راڬم‎), or rarely known as Bolkiah the Great, was the sixth sultan of Brunei from 1485 until his death in 1524, he ascended the throne upon the abdication of his father, Sultan Sulaiman. His reign was known as the "Golden Age of Brunei" due to its dominance throughout Borneo and the southern Philippines.

He is considered the first sultan to have used cannons, as the Sultan paid 40 Javanese blacksmiths to teach metal casting in Brunei, possibly introducing cannon casting, introducing cannon technology to Brunei.

Bolkiah was mentioned in the Batu Tarsilah, a 19th-century Bruneian stone tablet which describes the genealogy of the Sultans of Brunei. He was also mentioned in the Silsilah Raja-Raja Berunai, a 19th-century manuscript which also describes the same genealogy. The Spaniards refer to him as Sultan Salan in the Boxer Codex, a 16th-century Spanish manuscript.

Bolkiah was known in Bornean and Malay traditions by the title Malay: Nakhoda Ragam, lit. 'Singing Captain'. However, it is argued that the title is also given to another Sultan of Brunei and other figures in the Malay Archipelago. Among other instruments, he was known to like playing the lute and drums. Known more for his unwavering diplomacy and opposition to violence, he was an adventurous navigator who frequently traveled to examine his territory and a figure who inspired numerous stories.

The reign of Sultan Bolkiah is said to be the golden age of Brunei. His dominion is said to have included present-day Sarawak and Sabah in Borneo, as well as Manila and the Sulu Archipelago in the Philippines. There is also the possibility that his sovereignty also extended to Kalimantan, including Sambas, Kotaringin, Pontianak, Banjar, Barau and Bolongan. He was mentioned in Silsilah Raja-Raja Berunai as the Bruneian sultan who "defeated the states of Suluk and Seludang".

The early history of the Sultanate of Brunei, including the early years of its foundation and the Bruneian sultans who established the country, is the subject of study. The first Sultan of Brunei, Awang Alak Betatar, and his brothers, Awang Semaun, were among them. Ong Sum Ping, and Sultan Bolkiah are a few tales that center on the early history of the Brunei Sultanate, aside from that.

Early 16th century Portuguese accounts shed light on Brunei's economic links. One such report, from Tomé Pires in 1515, cites Brunei's merchant ships arriving at Malacca with those from Tanjungpura and Labai in West Kalimantan. This demonstrates the importance of Borneo's trading powers at the time, with Brunei and Java depending on Labai (Laoe)'s advantageous location at the mouth of the Kapuas River. By recording Brunei's reconquest of Labai and providing firsthand accounts from his contact with Ferdinand Magellan's expedition, Antonio Pigafetta's 1521 visit and report emphasises Brunei's great influence. It also shows Brunei's reach over Borneo and the Philippine islands.

Arriving at a harbour on Borneo's northwest coast, Magellan's alguacil, Gonzalo de Espinosa recognised it as Bruni (the capital of Brunei). The Spaniards safely moored close to the coast, receiving a warm welcome from the villagers, who were used to seeing European ships. Even though they kept a close eye on things, the night was uneventful and there were no conflicts, so the crew and officers slept well. Early in the morning, Espinosa welcomed the leaders of Bruni aboard his flagship, the Trinidad, where they arrived in a grand, gilded barge accompanied by musicians. They brought gifts including livestock, fruits, betel-filled containers, and arrack, initiating diplomatic exchanges characterized by mutual respect and cultural exchange.