Guilhermina Augusta Xavier de Medim Suggia Carteado Mena, known as Guilhermina Suggia, (27 June 1885 – 30 July 1950) was a Portuguese cellist. She studied in Paris, France with Pablo Casals, and built an international reputation. She spent many years living in the United Kingdom, where she was particularly celebrated. She retired in 1939, but emerged from retirement to give concerts in Britain. Her last was in 1949, the year before her death.
Suggia bequeathed an important British scholarship for young cellists, which has been granted to performers including Rohan de Saram, Jacqueline du Pré, Robert Cohen and Steven Isserlis.
Suggia was born in Porto to a family of Italian descent. Her father was a competent musician and taught her musical theory and cello. Such was her progress that by the age of 12 she was appointed principal cellist of the local orchestra, the Orpheon Portuense. In 1904, under the patronage of Queen Maria Amélia of Portugal, she went to study at the Leipzig Conservatoire under Julius Klengel.
Within a year Suggia was asked to appear as a soloist with the Leipzig Gewandhaus Orchestra under its conductor, Arthur Nikisch. From 1906 to 1912 she lived and worked in Paris with the cellist Pablo Casals. It was generally believed, incorrectly, that the two were married, and Suggia was sometimes billed as "Mme P. Casals-Suggia". She began to tour internationally, building her reputation. She and Casals were rated as "the world's leading cellists." After they separated, Suggia retained her admiration for Casals, describing him as pre-eminent among living cellists. In 1914 she formed a trio with the violinist Jelly d'Arányi and the pianist Fanny Davies. During the period of her residence in Britain during the 1920s and 1930s, she was a frequent visitor to Lindisfarne Castle in northern England, where a cello now rests in the Music Room in commemoration of her time spent there. Her "Montagnana" cello rests in Conservatório de Música do Porto, her home-town in Portugal.