St Margaret Pattens is a Church of England church in the City of London, located on Eastcheap near the Monument. The dedication is to Saint Margaret of Antioch.

Eastcheap is a street in central London that is a western continuation of Great Tower Street towards Monument junction. Its name derives from cheap, the Old English word for market, with the prefix 'East' distinguishing it from Westcheap, another former market street that today is called Cheapside.