Henrik Roardsen Spangelo (1858–1926) was a Norwegian politician for the Conservative Party and later the Liberal Left Party.
A jurist by education, he worked as a civil servant in Grimstad and Arendal. At the same time he speculated in estate in his native Årdal, such as the Tyin waterfall in Øvre Årdal.
He served as a deputy representative to the Norwegian Parliament from the constituency Arendal og Grimstad during the terms 1906 - 1909 and 1910 - 1912. He then served as a regular representative during the terms 1913 - 1915, 1919 - 1921 and 1922 - 1924. From 1919 to 1924 he was President of the Odelsting.