Festuca frederikseniae, also known as North Atlantic fescue or Frederksen's fescue, is a species of grass native to Greenland, Newfoundland, Labrador, and to a few islands in eastern Québec (Mingan Archipelago and Anticosti Island). In Iceland and southern Greenland, a few populations have been found that may be hybrids between F. rubra and either F. frederikseniae or F. vivipara. The purported hybrids have been named F. x villosa-vivipara. All these species grow on cliffs and on rocky or sandy soils in alpine tundra. It was first described in 1985.

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