UNSA may refer to:
Universities Universitas Surakarta, Surakarta, Indonesia Université de Nice Sophia Antipolis, Nice, France National University of St Augustin of Arequipa (Universidad Nacional de San Agustín de Arequipa), Arequipa, Peru University of Sarajevo, Bosnia and Herzegovina National University of Salta (Universidad Nacional de Salta, UNSa), Salta, Argentina University of Newcastle Students' Association, Australia
Other Union nationale des syndicats autonomes, a French trade union UNSA Stadium, Arequipa, Peru United Nations Space Alliance, a faction in Call of Duty: Infinite Warfare Union nationale des syndicats agricoles, a defunct French farmers' union