is a parish and village on the outskirts of Felixstowe, on a low-lying peninsula between Harwich Harbour and the River Deben, in Suffolk, England. It lies on the Roman road between Felixstowe and Ipswich. The village, and its neighbour Trimley St. Mary, are famous for their adjacent churches, which were built as the result of a historical family feud. St. Martin’s church is the Northerly church The village has a number of shops, and two pubs. Trimley railway station serves the village on the Felixstowe Branch Line. According to the 2011 census, the population of Trimley was 3,665.

In the 1870s, Trimley was described in this way:
Trimley St Martin and St. Mary are two parishes in Woodbridge district. The churches stand in one churchyard, and are both rubble buildings.

The church here today continues to be a place where Christians meet together to worship God and to learn more about Jesus.