St Denys' Church, York is a Grade I listed parish church in the Church of England on Walmgate in York.

Walmgate is a street in the city centre of York, in England. During the Medieval period, the street was the site of a seafish and cattle market. Walmgate Bar was involved in the Siege of York in 1644, during the First English Civil War. During the 20th century, many of the older buildings were cleared away and newer structures put up.