Beru is an atoll in the Southern Gilbert Islands in the Pacific Ocean, part of the Republic of Kiribati.

Due to sea surges, the atoll is experiencing coastal erosion along with damages to seawalls.

[1][2] Extensive spit development has created the nearly enclosed Tabiang Lagoon at the north end where mangroves are present.

A small lagoon or barachois at the northern tip is surrounded by man-made fishponds to hold Milkfish, as is a similar feature at the south end of the islet.

A 3 km (2 mi) long barachois with extensive mangroves occupies the interior south of Nuka Lagoon.

The windward side of the atoll is experiencing coastal erosion due to wave action.