Langøya, Sandefjord

Langøya is an island in Sandefjord Municipality in Vestfold county, Norway. The 0.55 km2 island is located in the Tønsbergfjorden, just outside the village of Skravestad. The island is accessible through a bridge that connects to the road Sandsveien. The island was named for its long shape. The 1.5 km long island has an area of 550 daa. It consists of farm fields, hills, and forests.

It is a car-free island consisting of meadows, knolls, salt meadows, small bays, and forests. It became a landscape conservation area in 2006. It is known for its wide variety of rare wildflowers including species such as sea thrift, alternate-leaved golden-saxifrage, cowslip, greater yellow-rattle, sticky catchfly, and many others.

History
Five burial mounds from the Bronze Age have been discovered on the island. Throughout most of the 1600s, the island belonged to residents of Tønsberg. In the 1660s, it was purchased and managed from Skravestad in Stokke.

Historically, the island had been a part of Sandeherred and Stokke municipalities. The small Skravestadholmen cape area in the southwestern part of the island was part of Sandeherred (which later became part of Sandefjord). The rest of the island was part of Stokke municipality which also became part of Sandefjord in 2016.