Piddletrenthide ( /ˌpɪdəltrɛntˈhaɪd/) is a village and civil parish in the English county of Dorset. It is sited by the small River Piddle in a valley on the dip slope of the Dorset Downs, 8 miles (13 km) north of Dorchester. In the 2011 census the parish—which includes the small village of Plush to the northeast—had 323 dwellings, 290 households and a population of 647.