Loppa is a municipality in Finnmark county, Norway. The administrative centre of the municipality is the village of Øksfjord. Loppa was established as a municipality on 1 January 1838 (see formannskapsdistrikt). Hasvik was separated from Loppa in 1858.The municipality is the westernmost of Finnmark, and faces the open stretch of the Atlantic called Lopphavet, and is mostly coastal with fjords and islands under the gigantic snowcap of the Øksfjordjøkelen glacier.
Most people live in Øksfjord, but smaller communities are spread along the shores and islands, notably Nuvsvåg, Sandland, Bergsfjord, Brynilen, and the island of Loppa. This island was previously the centre of the municipality, hence the name. There is no airport, but Øksfjord is a port of call for the Hurtigruten boats.