Giovanni Giacomo Semenza (18 July 1580 – 1638) was an Italian painter of the early Baroque period. Born in Bologna and also known as Giacomo Sementi. He was a pupil of the painter Denis Calvaert, then of Guido Reni. Among his pupils were Giacinto Brandi. He painted a Christ the Redeemer for the church of St. Catherine in Bologna.

• Hobbes, James R. (1849). Picture collector's manual adapted to the professional man, and the amateur. London: T&W Boone. p. 280.
• Featured in the Vite.. of Giovanni Baglione. p. 230.
• Cyclopedia of Painters and Paintings edited by John Denison Champlin, Charles Callahan Perkins, Volume IV, Scribner and Sons (1887): page 169.