The Circus Tavern on Portland Street in Manchester, England, is the smallest public house in the city, with one of the smallest bars in the country.
Built in about 1790 and originally a house, it is one of the oldest pubs in Manchester, although it only became a pub in about 1840. The pub is owned by Tetley's, a Yorkshire brewery, and contains photographs of former Manchester United players who frequented it, including George Best. It is three doors away from another small public house, the Grey Horse Inn.
On 6 June 1994, it was designated a Grade II listed building.