Lars Johannes Irgens (9 October 1775 – 22 April 1830) was a Norwegian jurist and public official.
[1] Lars Johannes Irgens was born in Hof in Solør, Hedmark, Norway.
[2][3][4] He served as a lieutenant in Oppland Dragon Corps (Oplandske Dragonregiment).
He represented Nordre Bergenhus amt (now Sogn og Fjordane) at the Norwegian Constituent Assembly at Eidsvoll in 1814 together with Peder Hjermann and Niels Nielsen.
All three representatives supported the independence party (Selvstendighetspartiet).