Grade I listed buildings in Suffolk Coastal

There are 60[1] Grade I listed buildings in Suffolk Coastal, a non-metropolitan district in the county of Suffolk in England.

The interior of St Bartholomew's, the parish church of Orford.

In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of "exceptional architectural or historic special interest"; Grade I structures are those considered to be "buildings of "exceptional interest, sometimes considered to be internationally important. Just 2.5% of listed buildings are Grade I." The total number of listed buildings in England is 372,905.[2] Listing was begun by a provision in the Town and Country Planning Act 1947. Listing a building imposes severe restrictions on what the owner might wish to change or modify in the structure or its fittings. In England, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990[3] rests with English Heritage, a non-departmental public body sponsored by the Department for Culture, Media and Sport.

Suffolk Coastal is a local government district with its administrative headquarters at Woodbridge, while the main town in the district is Felixstowe, which is also Britain's busiest container port. The other towns in the district are Framlingham, Leiston, Orford, Saxmundham and Walton. The number of inhabitants of the area is 124,400 with a density of 140 inhabitants per km². There are 118 civil parishes in Suffolk Coastal.