Baccio Maria Bacci (Florence, 8 January 1888 - Florence, 8 October 1974) was an Italian painter.
Son of Adolfo Bacci (in turn painter), he follows the courses of Adolfo De Carolis and Giovanni Fattori at the Academy of Fine Arts in Florence, but interrupts his studies to devote himself to personal research influenced by Cézanne. He made his debut in Florence in 1910 with an exhibition set up together with Giovanni Costetti, earning the favor of critics such as Emilio Cecchi, Thomas Neal (Angelo Cecconi), Matteo Marangoni. In 1913 he approached the themes of futurism and later spent a short period in Paris. He leaves for the war and in 1919 returns to Fiesole and resumes painting. In 1922 he was granted a personal room, at the Florentine Spring, where he exhibited works that reveal the study of great seventeenth-century painting.
Followed by years full of participation in the main national and international exhibitions, of contacts with the intellectual environment close to the "Solaria" magazine, to which Bacci collaborates with writings, drawings and critical contributions. Between 1929 and 1962 he painted eighteen of the frescoes illustrating the life of Saint Francis of Assisi in the Corridor of the Stigmata, at the Sanctuary of Verna. In 1931 he participated in the first Quadrennial in Rome. In 1934 he painted the Seven Works of Mercy, donated to the convent of San Francesco di Fiesole.
During the Second World War he was appointed President of the Commission for the protection of works of art of the Municipality of Florence. From 1948 he returned to exhibit, with a personal exhibition at the Gian Ferrari Gallery in Milan. The easel painting of this period looks at Nordic romanticism and the intimacy of Vermeer's interiors, with particular attention to the compositional order and quality of light. From 1953 to 1955 he worked on the mosaic for the apse of the cathedral of Salerno and on the frescoes for the church of Sant'Andrea in Rovezzano. Since 1955 he lives in Rome and collaborates with the magazines "Fede e Arte" and "Letteratura". In 1957 he painted the frescoes of the collegiate church of Montevarchi, of Franciscan subject. In 1965 he designed the large apse mosaic of the Church of San Giuseppe Calasanzio in Milan, created by the painter Franco d'Urso. He died two years after returning to Florence in 1972.