Longthorpe is a village in the city of Peterborough, Cambridgeshire, in the United Kingdom. Located two miles (3.2 km) west from the city centre, the area covers 1,390 acres (560 hectares). For electoral purposes it forms part of Peterborough West ward. A 1st century Roman fort was established at Longthorpe, it may have been as early as around AD 44–48 but was certainly present by 61–62. The first phase covered 27 acres (11 ha), this was later replaced by another fort measuring 11 acres (4.5 ha).