Anna Cathrine of Schleswig-Holstein (10 August, 1618-20 August, 1633) was a daughter of Christian IV of Denmark and his second wife, Kirsten Munk. As this was a morganatic marriage, Anne Cathrine was not considered a princess of Denmark in her life-time. She died at the age of 15. Aside from these details, little information about her life is readily available in English.