The Haugaland (Haugalandet), or the Haugesund Peninsula (Haugesundshalvøyen), is a peninsula and traditional district in the northwestern part of Rogaland county, Norway. The area lies between the Boknafjord to the south and the Bømlafjord, part of the outer Hardangerfjord, to the north.

In a traditional geographical and cultural sense, the Haugaland comprises the municipalities of Haugesund, Karmøy, Tysvær, Vindafjord, Bokn, and Utsira. Together, these cover an area of 1,402 square kilometres (541 sq mi) and had a population of 104,058 in 2025. This definition represents the most widely accepted understanding of the Haugaland, with Haugesund serving as the regional centre, while other towns include Kopervik, Åkrehamn, and Skudeneshavn on Karmøy.

The municipalities of Stord, Fitjar, Bømlo, Tysnes, and Kvinnherad in Sunnhordland are not normally considered part of the Haugaland, but instead belong to a separate historical and geographical district further north. In certain administrative and legal contexts, however, Sunnhordland and the Haugaland are treated as a single region. Examples include the Haugaland and Sunnhordland District Court, which since 2021 has covered 14 municipalities in Rogaland and Vestland counties, and the former Haugaland and Sunnhordland Police District (2002–2015). This usage is functional in nature and differs from the traditional geographical delimitation.

In a broader regional context, the municipalities of Sveio and Etne, located south of the Bømlafjord, Bjoafjord, and Skånevikfjord, are sometimes also included in the Haugaland. This expanded definition gives a total area of 2,383 square kilometres (920 sq mi) and a population of 113,903 (2025). Ølen serves as a minor regional centre in the inner part of the district.

The Haugaland was traditionally regarded as part of Ryfylke, but that term is now used only for the areas further east. The name derives from the Old Norse farm name Haugar and originally referred to the area surrounding the historic farm and, later, the town of Haugesund. The form Haugarlandet occurs in older usage, and the peninsula has also been referred to as the Haugesundshalvøyen (Haugesund Peninsula).

The name Haugalandet came into use in the 19th century, likely introduced by Ivar Aasen, who used it in the poem "Haraldshaugen", written after his visit to Haraldshaugen and published in Folkevennen in 1853. Around 1900, the name became more widespread, particularly within the Nynorsk movement, the temperance movement, and the labour movement, which often used the form Haugarlandet, while the bourgeoisie in Haugesund preferred the term Haugesund halvø (Haugesund Peninsula). From the 1970s onward, Haugalandet has been used in public administration and regional planning.

The Haugaland is traditionally divided into six municipalities in Rogaland:

In 1838, the area was divided into the municipalities of Skjold, Nedstrand, Avaldsnes, Torvastad, Skudenes, and Vikedal. Tysvær was separated from Skjold in 1849, followed by Vats in 1891. Sjernarøy was separated from Nedstrand Municipality in 1868. From Torvastad, Haugesund was separated in 1854, Skåre in 1881, and Utsira in 1924. From Skudenes, Bokn was separated in 1849, Skudeneshavn in 1857, and Åkra in 1892. Kopervik was separated from Avaldsnes in 1866 and Stangaland in 1908, while Imsland and Sandeid were separated from Vikedal in 1922. Skåre was incorporated into Haugesund in 1958.