Johan Augustinussen, also written Augustiniussen, (born 10 May 1808 at Langset in Nesna municipality, died 22 November 1888 in Nesna) was a Norwegian curate/choirmaster, teacher and politician. Despite a lack of formal education, straight after his confirmation he was appointed as the communal school teacher in his native village of Nesna, and at the young age of 22, he was employed as the village's teacher and choirmaster, a position he held for almost 50 years. He also wrote poems and folk songs, and was very interested in music.