The Kingdomship of Bali (Balinese: ᭚ᬓᭂᬭᬚ᭡ᬦ᭄ᬩᬮᬶ; romanized: Kĕrajaan Bali) was a series of Hindu-Buddhist kingdoms that once ruled some parts of the volcanic island of Bali, in Lesser Sunda Islands, Indonesia. With a history of native Balinese kingship spanning from the early 10th to early 20th centuries, Balinese kingdoms demonstrated sophisticated Balinese court culture where native elements of spirit and ancestral reverence combined with Hindu influences—adopted from India through ancient Java intermediary—flourished, enriched and shaped Balinese culture.
Because of its proximity and close cultural relations with the neighbouring island of Java during the Indonesian Hindu-Buddhist period, the history of the Bali Kingdom was often intertwined with and heavily influenced by its Javanese counterparts, from Mataram (c. 9th century) to the Majapahit empire in the 13th to 15th centuries. The culture, language, arts and architecture of the island was influenced by Java. Javanese influences and presences grew even stronger with the fall of the Majapahit empire in the late 15th century. After the empire fell to its Muslim vassal the Demak Sultanate, a number of Hindu Majapahit courtiers, nobles, priests, and artisans found refuge on the island of Bali. As a result, Bali became what historian Ramesh Chandra Majumdar describes as the last stronghold of Indo-Javanese culture and civilisation. The Bali Kingdom in the following centuries expanded its influence to neighboring islands and began to establish colonies; Gelgel Kingdom Bali, for example, expanded their influence and established a colony in the Blambangan region at the eastern tip of Java to the western part of the Sumbawa island, while Karangasem Kingdom established their colonial settlements in western parts of Lombok, and the Klungkung kingdom conquered Nusa Penida in a later period.