Kennebunkport /ˌkɛniˈbʌŋkˌpɔːrt/ is a resort town in York County, Maine, United States. The population was 3,629 people at the 2020 census. It is part of the Portland–South Portland–Biddeford metropolitan statistical area.

The town center, the area in and around Dock Square, is located along the Kennebunk River, approximately 1 mile (1.6 km) from the mouth of the river on the Atlantic Ocean. Historically a shipbuilding and fishing village, for well over a century the town has been a popular summer colony and seaside tourist destination. The Dock Square area has a district of souvenir shops, art galleries, schooner attractions, seafood restaurants, and bed and breakfasts. Cape Porpoise, while retaining its identity as a fishing harbor, has a very small village area with several restaurants, a church, grocery store, coffee shop, small library, and art gallery. Kennebunkport has a reputation as a summer haven for the upper class and is one of the wealthiest communities in the state of Maine. The Municipality of Kennebunkport includes the constituent villages of Kennebunkport Village, Cape Arundel & Colony Beach, the Cottage Coast, Wilde's District (Wildwood), Goose Rocks Beach, Turbatts Creek, Cape Porpoise Village, North Village Crossing (Townhouse Corner), among various other newer developments. The town is the home of Walker's Point, a summer estate of the Bush family.

Kennebunkport and neighboring towns Kennebunk and Arundel comprise school district RSU 21.

The Kennebunkport Christmas Prelude takes place annually in the town, beginning either in late November or early December.