Lars Johannes Irgens (9 October 1775 – 22 April 1830) was a Norwegian jurist and politician.

He was born in Hof in Solør. He graduated as cand.jur. in 1802, and was appointed district stipendiary magistrate (sorenskriver) in Sogn the same year. He was a member of the Norwegian Constitutional Assembly in 1814.

He is the father of later government minister Nils Christian Irgens.

Sources

• snl.no: Riksforsamlingen på Eidsvoll 1814
• eidsvollsmenn.no: Lars Johannes Irgens
• Norsk Wikipedia: Lars Johannes Irgens
• Norsk biografisk leksikon: Irgens
• genealogy.munthe.net: Lars Johannes Irgens

Parish register

• Birth - Parish register (official) nr. 3 (1750-1789), Hedmark county, Hof, Chronological list 1775, page 538-539 - Entry just before Valler 18th Oct: Lars Johannes Irgens - Hof
• Marriage - Hedmark county, Ringsaker, Parish register (official) nr. 4 (1799-1814), Marriage records 1801, page 155: Lieutenant Johanes von Irgens - Christiana Schmidt - 28 Juli 1801 - Ringsaker
• Death - Not found at Luster 1830