Parliamentary elections were held in South West Africa on 16 November 1955. The whites-only election again saw victory and an overwhelming majority for the National Party of South West Africa, which won 16 of the 18 seats in the Legislative Assembly.
The 18 members of the Legislative Assembly were elected from single-member constituencies: Aroab, Gobabis, Grootfontein, Keetmanshoop, Luderitz, Maltahöhe, Mariental, Okahandja, Otjikondo, Otjiwarongo, Outjo, Rehoboth, Swakopmund, Usakos, Warmbad, Windhoek East, Windhoek North and Windhoek West.