St Mark's, Mayfair, is a Grade-I listed building, a former Anglican place of worship in North Audley Street, in the Mayfair district of London.
St Mark's was last used as a place of Christian worship by an independent congregation Commonwealth Christian Fellowship (CCF) from April 1994 to June 2014.
It has been the site of Mercado Mayfair, a food hall, since 2019.