Benacre Broad is an isolated coastal lagoon on the North Sea coast of the English county of Suffolk.

It is located in the parish of Benacre around 1⁄2 mile (0.80 km) north of the village of Covehithe.

[1] It forms part of the area of the Pakefield to Easton Bavents Site of Special Scientific Interest and the Benacre and Easton Barents Lagoons Special Area of Conservation.

[2] The main broad area has traditionally been made up of a number of smaller bodies of water and in 1996 a number of small pools were created to combat the impact of coastal erosion and increasing water salinity on habitats.

[3][4] At the end of November 2011 a high tidal surge broke through the narrow beach separating the Broad from the sea, inundating the area and increasing the salinity markedly.