Sorsogon City (Central Bikol: Ciudad nin Sorsogon; Filipino: Lungsod ng Sorsogon), is a second class component city and the provincial capital of Sorsogon, in the Bicol Region of the Philippines. This city was formed by merging the Bacon and Sorsogon towns. As of 2015, the city's total population is 168,110 people, spread across 64 barangays. It is the third most populous city in the Bicol Region behind Naga City (196,003) and Legazpi City (196,639). Sorsogon City covers a land area of 31,292 hectares (77,320 acres), making it Bicol's largest city in terms of land area. The city is bounded by the municipality of Casiguran and Sorsogon Bay, on the west by the municipality of Castilla, on the north-east by the municipality of Manito in Albay, and on the north by Albay Gulf. The city serves a trans-shipment point from the Visayas and Mindanao provinces. It is also dubbed as "Gateway to Southern Philippines". Sorsogon City is one of the region's leading cities in urbanization.

Sorsogon City is divided into three districts: The West District, East District where the central business area is and Bacon district which is a former town of the province and was merged with the town of Sorsogon upon the creation of the city in 2000.

The name of the city is derived from the word "sosogon" meaning "trace the river by going upstream".

Sorsogon comes from a word "Sosogon". When the Spaniards had settled in Gibalong, they set out to further explore the inner lands. Upon reaching a small river emptying into what is now Sorsogon Bay, they asked a native they met for the name of the place. The native, not understanding Spanish and thinking they were asking for directions, answered, "Sosogon" meaning "trace the river by going upstream". Through constant use, Sosogon became Sorsogon.

With the coming of the Spanish colonizers in the 1600s, Bacon was organized into a visita of the town of Casiguran, one of the oldest settlements in Luzon. The municipality of Sorsogon, whose original Site was in Sitio Pocdol in Capuy, was in turn, a visita of Bacon. As its population increased, however, Sorsogon was declared an independent, full-fledged parish in 1628.

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