Dennis James Baker (born 29 December 1947 in Norseman, Western Australia) was an Australian cricketer who played for Western Australia and Tasmania. His career was from 1972 until 1982. His batting style is right-hand bat and his bowling style is right-arm fast medium. On 28 July 2000, Baker was awarded the Australian Sports Medal with the citation reading "Dual Sheffield Shield representative for WA/Tas/career of more than 25 years".