Misamis Occidental (Cebuano: Kasadpang Misamis; Subanen: Sindepan Mis'samis; Filipino: Kanlurang Misamis) is a province located in the region of Northern Mindanao in the Philippines. Its capital is the city of Oroquieta. The province borders Zamboanga del Norte and Zamboanga del Sur to the west and is separated from Lanao del Norte by Panguil Bay to the south and Iligan Bay to the east. The province of Misamis was originally inhabited by Subanens who were an easy target by the sea pirates from Lanao.

The province is named after the early settlement of the Spaniards at the entrance to the Panguil Bay. The name Misamis is believed to have been derived from the Subanen word Kuyamis which is a variety of coconut, the staple food of the early settlers. During the years the name persisted as an inference of the geographical location, and upon the advent of the Spanish settlers, the word kuyamis easily gave way to the more convenient pronounceable but corrupted word Misamis.

The area of now Misamis Occidental was first occupied by Subanen and later Visayans settled in the coastal areas. The name Misamis is derived from Subanen word kuyamis which is a variety of coconut. During the 1750s was the time that the coastal villages in Southern Luzon, Visayas and Mindanao suffered attacks from bands of Muslim pirates, who burned houses and crops, and captured people to be sold as slaves in Maguindanao, Sulu, Borneo or the islands now known as Indonesia. In response, the colonial government in Manila created a flotilla and appointed a Spanish Jesuit missionary, José Ducos, as its commander.

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