"Aus tiefer Not schrei ich zu dir", originally "Aus tieffer not schrey ich zu dir", later also "Aus tiefer Noth schrei' ich zu dir", is a Lutheran hymn of 1524, with words written by Martin Luther as a paraphrase of Psalm 130. It was first published in 1524 as one of eight songs in the first Lutheran hymnal, the Achtliederbuch, which contained four songs by Luther, three by Paul Speratus, and one by Justus Jonas, and also appeared the same year in the Erfurt Enchiridion. It is part of many hymnals, also in translations. The text inspired vocal and organ music from the Renaissance to contemporary, including composers such as Johann Sebastian Bach, who based a chorale cantata on it, Felix Mendelssohn and Max Reger.

Martin Luther was a German priest, theologian, author, hymnwriter, professor, and Augustinian friar. Luther was the seminal figure of the Protestant Reformation, and his theological beliefs form the basis of Lutheranism. He is regarded as one of the most influential figures in Western and Christian history.