East Patchogue (/ˈpætʃɒɡ/, PATCH-awg) is a hamlet and census-designated place (CDP) in the Town of Brookhaven in Suffolk County, on the South Shore of Long Island, in New York, United States.

The CDP is a proximate representation of the East Patchogue hamlet used for statistical purposes of the United States Census Bureau.

[2][3] The area around County Road 80 in the western portion of East Patchogue was once commonly regarded as the hamlet of Hagerman.

In New York, a hamlet has no official boundaries or government and refers only to a named, settled area.

The Smith-Rourke House and Swan River Schoolhouse are listed on the National Register of Historic Places.

The Avery Homestead (also known as the Swan River Nursery), is listed as a threatened site sought for restoration by Preservation Long Island.

[5] Pine Neck Avenue boat ramp and fishing pier are on the south shore of East Patchogue.

The Park offers a natural beach, fishing pier, two boat ramps, and an adjacent undeveloped shoreline called "40 acres".

Pine Neck gives residents and visitors alike access and scenic views into Long Island's Great South Bay.