Charles Sinclair Butt (28 July 1900 – 21 January 1973) was an Australian businessman.
He worked for the Rapson Tyre company and the Dunlop Rubber Company.
By 1934 he was Dunlop's chief accountant.
[1] He also served as general manager and Controller of Tyres for the Olympic Tyre & Rubber Co.
[2] In 1962, he was made a Companion of the Order of St Michael and St George.