Baleshare (Scottish Gaelic: Baile Sear) is a flat tidal island in the Outer Hebrides of Scotland.

The 350-metre (380 yd) causeway was built by William Tawse Ltd.[6] The island is extremely flat by Hebridean standards, rising to only 12 metres (39 feet) above sea level and known for its long sandy beach.

[7] The basis for this seems to be a reference in the Exchequer Rolls for 1542 that the valued rental had been decreased due to encroachment by the sea at some unspecified (presumably recent) date.

Two prehistoric settlements have been uncovered, which contain the remains of a circular stone house and pieces of pottery, bone and metal.

[8][9] Baelshare was chosen as one of the pilot projects for the Shorewatch programme, which aimed to training community groups to search for new archaeological sites and record information on them to be passed on to local and national archives.