Fairfield is a ward in the London Borough of Croydon, covering most of the Croydon area of London in the United Kingdom.

Fairfield contains Croydon town centre, with its retail and office core.

Until 2018, it also contained Park Hill and the Whitgift Estate to the east which is mostly 20th century housing bordering Lloyd Park.

Also found in the ward are Ruskin House, the headquarters of the Croydon Labour Party, and the Fairfield Halls concert hall and arts centre.

Below are the results for the candidate which received the highest share of the popular vote in the ward at each mayoral election.