Princess Adelheid of Schaumburg-Lippe (9 March 1821 in Bückeburg, Schaumburg-Lippe – 30 July 1899 in Itzehoe, Schleswig-Holstein, Germany) was a member of the House of Schaumburg-Lippe and a Princess of Schaumburg-Lippe by birth.
Through her marriage to Friedrich, Duke of Schleswig-Holstein-Sonderburg-Glücksburg, Adelheid was a sister-in-law of Christian IX of Denmark and Duchess consort of Schleswig-Holstein-Sonderburg-Glücksburg from 14 October 1878 to 27 November 1885.