Ingolf Elster Christensen (28 March 1872 – 3 May 1943) was a Norwegian jurist, military officer, county governor, and Member of Parliament from the Conservative Party.

[1] Christensen was born at Sunnfjord in Sogn og Fjordane, Norway.

He was the son of Michael Sundt Tuchsen Christensen (1827–1895) and Frederikke Sophie Elster (1838–1927).

He then returned to his office as county governor until 1941 when he was replaced by a member of Nasjonal Samling.

After that he withdrew to his family farm and did not play a political role any longer.