Captain Frank Augustus Chaffey (31 March 1888 – 9 July 1940) was an Australian politician. He was born at Moonbi to farmer William Adolphus Chaffey and Amelia, née Chad. He was educated at Nemingha and Tamworth before attending Hawkesbury Agricultural College, after which he worked on the family dairy farm. He studied at Sydney Technical College from 1907 and worked as a woolclasser briefly before returning to Tamworth to run the farm. He was active in the local Farmers and Settlers Association. On 1 May 1912 he married Amy Stella McIlveen, with whom he had six children. During World War I he served with the 1st Light Horse Brigade and from 1918 to 1919 was Director of Education of the Australian Infantry Forces.