Captains Flat is a town in the Southern Tablelands of New South Wales, Australia, in Queanbeyan-Palerang Regional Council. It is south of Queanbeyan. It is suggested that a bullock named "Captain" from Foxlow station, 12 km away, grazed here and hence the place name. In the 1930s and 1940s many of the old buildings were replaced including the hotel. The new hotel built in 1938 was said to have the longest bar in Australia at the time; it was 32 metres long.