Waltham Abbey is a market town of about 20,400 people in the south west of the county of Essex, in the East of England region. It is about 24 km north of London on the Greenwich Meridian and lies between the River Lea in the west and Epping Forest in the east. It takes its name from Waltham Abbey, which was prominent in the early history of the town. It is also sometimes known as Waltham Holy Cross.
The nearest railway station is in the town of Waltham Cross, accessible from Liverpool Street Station in London. The nearest underground station is at Loughton on the Central Line, with which there are bus connections.
The town is in the District of Epping Forest and has its own town council and is twinned with the German town of Hörstel.