General Sinclair may refer to:
George Brian Sinclair (1928–2020), British Army major general John Sinclair (British Army officer) (1897–1977), British Army major general Patrick Sinclair (1736–1820), British Army lieutenant general Santiago Sinclair (born 1927), Chilean Army general Volodymyr Sinclair (1879—1946), Ukrainian People's Army major general
See also William Sinclair-Burgess (1880–1964), New Zealand Military Forces major general Ewen Sinclair-MacLagan (1868–1948), British Army major general