Dagupan, officially the City of Dagupan (Pangasinan: Siyudad na Dagupan; Filipino: Lungsod ng Dagupan) or simply Dagupan City, is an independent component city in the province of Pangasinan in the Philippines. According to the 2015 census, it has a population of 171,271 people with an income classification of second class.

Located on the Lingayen Gulf on the island of Luzon, Dagupan is a major commercial and financial center north of Manila. Also, the city is one of the centers of modern medical services, media and communication in Northern Luzon. Dagupan is situated within the fertile Agno River Valley.

The city is among the top producers of bangus/milkfish in the province. From 2001-2003, Dagupan's milkfish production totaled to 35,560.1 metric tons (MT), contributing 16.8 percent to the total provincial production. Of its total production in the past three years, 78.5 percent grew in fish pens/cages while the rest grew in brackish water fishpond.

The city's name was derived from the local Pangasinense word pandaragupan, meaning "gathering place" as the city has been a regional market center for centuries.

During the 15th century, Pangasinan had been the site of an ancient polity called the Kaboloan. A succession of local kings starting from Huang Kamayin set the kingdom up as a trade-center exporting silver, horses and Torquise shells to the ports in Japan, Ryukyu and China which in turn, sold silks and samurai swords to the Kaboloan.

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