Hoddesdon is a town in the Borough of Broxbourne, Hertfordshire, lying entirely within the London Metropolitan Area and Greater London Urban Area. The area is on the River Lea and the Lee Navigation along with the New River.

Hoddesdon is the second most populated town in the Borough with a population of 42,253 according to the 2011 census.

Hoddesdon borders Ware to the North, Nazeing in Essex to the East, and Broxbourne to the South. The Prime Meridian passes just to the east of Hoddesdon. The town is served by Rye House railway station and nearby Broxbourne railway station.

William Christie established a brewery in the town in 1803, and it became a major employer and one of the largest breweries in England. The brewery continued to operate until 1928. Most of the brewery buildings were demolished in 1930, although parts were converted into a cinema and shops. Some remnants of the Hoddesdon Brewery remain in Brewery Road.

After the Second World War Hoddesdon increasingly became a dormitory town, forming part of the London commuter belt.

During the 1960s and 1970s, many of the old buildings in the Town Centre were demolished, to make way 

Much of the town centre was demolished in the 1960s and 1970s, with the construction of the Tower Centre and Fawkon Walk shopping centres.