Vincent Square is a large grass-covered square in Westminster, London, England, covering 13 acres. It provides playing fields for Westminster School, which privately owns it. The square contains a cricket pavilion , four football pitches, several tennis courts, and the groundsman's house, and is used every weekday by Westminster Under School during breaks. Vincent Square is also a ward of the City of Westminster. The population at the 2011 Census was 9,988.