'Paternoster' was a German naval operation to lay an anti-submarine minefield in the Baltic Sea between Skagen (The Skaw) on the northern tip of German-occupied Denmark and Rigs in the narrows between the Skaggerak and the Kattegat (18 April 1940).

The vessels involved in this undertaking were the minelayers Hansestadt Danzig and Kaiser, supported by the torpedo boats Wolf, Greif, Seeadler and Möwe, and the minesweepers R 25 and R 27. In the evening of the same day the minelayers Roland, Cobra, Preussen and Königin Luise, backed by four torpedo boats and three minesweepers, also laid mines.