Irgens is a surname. Notable people with the surname include:
Åshild Irgens (born 1976), Norwegian illustratorChristian Andreas Irgens (1833–1915), Norwegian politicianJoachim Irgens von Westervick (1611–1675), Dano-Norwegian noblemanJohan Irgens-Hansen (1854–1895), Norwegian literary critic, theatre critic and theatre directorJohannes Irgens, Norwegian barrister, diplomat and politicianKjeld Stub Irgens (1879–1963), Norwegian politician during the German occupation of NorwayLars Johannes Irgens (1775–1830), Norwegian jurist and politicianLudvig Irgens-Jensen (1894–1969), Norwegian twentieth-century composerNils Christian Irgens (1811–1878), Norwegian military officer and politicianOle Irgens (bishop) (1724–1803), bishop in the Church of NorwayOle Irgens (politician) (1829–1906), Norwegian politician