Walls, traditionally pronounced Waas, is a settlement on the south side of West Mainland, Shetland Islands in Scotland.

Walls was the childhood home of two poets, Vagaland (Thomas Alexander Robertson, 1909–1973) and Christine De Luca (born 1947).

In 1884 it was the birthplace of both Peter Fraser (1884–1966), musician and founder member of the Shetland Fiddlers' Society, and William Moffatt, author.

The fishing vessels that are still based in Walls tend to use the pier a few hundred yards along the west side of Vaila Sound.

[4] Today it is home to the Shetland dialect children's writer Iris Sandison, also secretary to the local history group.