Carl Fredrik Adelcrantz (30 January 1716 – 1 March 1796) was a Swedish architect and civil servant. Adelcrantz's style developed from a rococo influenced by Carl Hårleman, the leading architect in Sweden in the early years of his career, to a classical idiom influenced by the stylistic developments in France in the mid-to-late 18th century. As överintendent, he headed the royal and public building works from 1767 until his retirement in 1795.