Nyasaland wani yanki ne da ke karkashin ikon Birtaniya a kudu maso gabashin Afirka wanda ya wanzu daga 1907 zuwa 1964, wanda ya ƙunshi yankin da a yanzu yake Jamhuriyar Malawi. Kasa ce mai iyaka da Tanzaniya a yau, Mozambique, da Zambia. Kalmar "Nyasa" tana nufin tafkin Nyasa (wanda ake kira tafkin Malawi), wanda ya kasance iyakar gabashin Malawi. Kalmar "Nyasa" ta samo asali ne daga yaren Yao, ma'ana "tafki" ko "ruwa."