The Peacock Mausoleum is a Victorian Gothic memorial to Richard Peacock (1820–1889), engineer and Liberal MP for Manchester, and to his son, Joseph Peacock. It is situated in the cemetery of Brookfield Unitarian Church, Gorton, Manchester. The mausoleum was designed by the prolific Manchester architect Thomas Worthington. It was listed Grade II* on the National Heritage List for England on 3 October 1974.

Nikolaus Pevsner's The Buildings of England describes the memorial as "a large three-bay shrine of white stone. Steep roof and statues at the corners – an engineer, blacksmith, draughtsman and architect, supposedly a portrayal of Worthington himself." Peacock, a partner in the locomotive engineering firm of Beyer, Peacock & Company also paid for the construction of the Brookfield Unitarian Church.

• Listed buildings in Manchester-M18

• Hartwell, Clare; Hyde, Matthew; Pevsner, Nikolaus (2004). Lancashire: Manchester and the South East. The Buildings Of England. New Haven and London: Yale University Press. ISBN 0-300-10583-5.

• Website featuring an early photo of the mausoleum