Catharina Fredrika Limnell née Forssberg (14 July 1816 – 12 September 1897), was a Swedish philanthropist, mecenate, feminist and salonist.
After the death of her first husband, she was married in 1858 to Carl Abraham Limnell (1823–1882), a lieutenant in the Civil Engineering Corps and later office manager at the Swedish Royal Railway Board.
She was a benefactor of artists: she partially financed Fredrika Bremer's trip to Palestine, and supported Selma Lagerlöf economically so she could concentrate on her writing.
She held a salon for the artist elite, and gathered artists as guests at Villa Lyran, her country villa on Lake Mälaren from May–September, where Jenny Lind, Gunnar Wennerberg, Victoria Benedictsson, Carl Snoilsky, Carl David af Wirsén, Emil Sjögren, Christina Nilsson and Henrik Ibsen were among the guests.
Among her guests were Bjørnstjerne Bjørnson, W F Dalman, Ivar Hallström, L J Hierta, Elise Hwasser, Henrik Ibsen, Carl Snoilsky, Sophie Adlersparre, Amanda Kerfstedt and Anna Hierta-Retzius.
She participated in the social projects of Fredrika Bremer and Princess Eugenie of Sweden, in the ladies' committee in the foundation of the Swedish Red Cross (Svenska Röda Korset) (1864–1865) and during 1884 in the foundation in the pioneer Swedish feminist organisation Fredrika Bremer Association together with Sophie Adlersparre, Ellen Anckarsvärd, Ellen Fries, Hans Hildebrand and Gustaf Sjöberg.