Troston is a village and civil parish in Suffolk, England, five miles north-east of Bury St Edmunds.

Its parish church contains rare mediaeval wall paintings, including dragon-slaying and the Martyrdom of St Edmund.

The local pub, The Bull, had been a central part of the village since the late 1800s, but was closed, leaving it boarded up.

[5] The parish falls under the West Suffolk District Council ward of Pakenham & Troston, the Suffolk County Council division of Thingoe North, and the parliamentary constituency of Bury St Edmunds and Stowmarket, whose MP since 2024 is Peter Prinsley of the Labour Party.

The ecclesiastical parish falls under the province of Canterbury, the diocese of St Edmundsbury and Ipswich, the archdeaconry of Sudbury, and the deanery of Ixworth.