Cosimo is the Italian form of the Greek name Kosmas (latinised as Cosmas). Cosimo may refer to: Characters Cosimo Piovasco di Rondò, hero of Italo Calvino's 1957 novel The Baron in the Trees Given name Medici family Cosimo de' Medici (1389–1464), ruler of Florence, Italy Cosimo di Giovanni de' Medici (disambiguation), any of several people of the same name Cosimo I de' Medici, Grand Duke of Tuscany (1519–1574) Cosimo II de' Medici, Grand Duke of Tuscany (1590–1621) Cosimo III de' Medici, Grand Duke of Tuscany (1642–1723) Other people Cosimo Antonelli (1925–2014), Italian water polo player Cosimo Bartoli (1503–1572), Italian diplomat and humanist Cosimo Boscaglia (c.1550–1621), Italian professor of philosophy Cosimo Caliandro (1982–2011), Italian middle distance runner Cosimo Cavallaro (born 1961), Italian-Canadian artist Cosimo Commisso (soccer), Canadian soccer player Cosimo Daddi (died 1630), Italian painter Cosimo Fancelli (c. 1620–1688), Italian sculptor Cosimo Fanzago (1591–1678), Italian architect and sculptor Cosimo Lotti (1571–1643), Italian engineer Cosimo Matassa (1926–2014), Italian-American studio owner Cosimo Morelli (1732–1812), Italian architect Cosimo Perrotta (born 1942), Italian professor of economic history Cosimo Pinto (born 1943), Italian boxer Cosimo Rosselli (1439–1507), Italian painter Cosimo Tura (c. 1430–1495), Italian painter Cosimo Ulivelli (1625–1704), Italian painter Surname Piero di Cosimo (1462–1522), Italian painter See also Cosimo Commisso (disambiguation) Cosma (disambiguation) Cosmas (disambiguation) Cosmo (disambiguation) Cosmo (name) Kosmo, a geographic information software Kosmo!, a Malaysian newspaper