Fredericton (; French pronunciation: ​[fʁɛdeʁiktœn]) is the capital city of the Canadian province of New Brunswick. The city is situated in the west-central portion of the province along the Saint John River, also known by its Indigenous name of Wolastoq, which flows west to east as it bisects the city. The river is the dominant natural feature of the area. One of the main urban centres in New Brunswick, the city had a population of 63,116 and a metropolitan population of 108,610 in the 2021 Canadian Census. It is the third-largest city in the province after Moncton and Saint John.

On 1 January 2023, Fredericton annexed parts of five local service districts; revised census figures have not been released.

An important cultural, artistic, and educational centre for the province, Fredericton is home to two universities, the New Brunswick College of Craft and Design, and cultural institutions such as the Beaverbrook Art Gallery, the Fredericton Region Museum, and The Playhouse, a performing arts venue. The city hosts the annual Harvest Jazz & Blues Festival, attracting regional and international jazz, blues, rock, and world artists. Fredericton is also an important and vibrant centre point for the region's top visual artists; many of New Brunswick's notable artists live and work there today. Fredericton has also been home to some great historical Canadian painters as well, including Goodridge Roberts, and Molly and Bruno Bobak.

As a provincial capital, its economy is tied to the public sector; however, the city also contains a growing IT and commercial sector. The city has the highest percentage of residents with post-secondary education in the province and the highest per capita income of any city in New Brunswick.