Princess Marie Agnes Henriette of Hohenlohe-Langenburg, full German name: Marie Agnes Henriette, Prinzessin zu Hohenlohe-Langenburg (5 December 1804, Langenburg, Principality of Hohenlohe-Langenburg – 9 September 1835, Haid, Kingdom of Bohemia, Austrian Empire) was a member of the House of Hohenlohe-Langenburg and a Princess of Hohenlohe-Langenburg by birth.
Through her marriage to Constantine, Hereditary Prince of Löwenstein-Wertheim-Rosenberg, Agnes was also a member of the House of Löwenstein-Wertheim-Rosenberg and Hereditary Princess of Löwenstein-Wertheim-Rosenberg.
Through her daughter Adelaide of Löwenstein-Wertheim-Rosenberg, Agnes is an ancestor to numerous Roman Catholic European royal families.