Reginald John Hailstone (1901–1963) was an Australian grazier and civic leader in the Lachlan Valley area of New South Wales.

[3] Hailstone was very enthusiastic about the development of the Lachlan Valley, contending that the area had "unlimited possibilities, as a producer of food stuffs".

[4] Hailstone was instrumental in getting the government to form the Wyangala National Park Trust, which focused on the development and beautification of the area.

[5][6] Amongst his many civic achievements, Hailstone facilitated progress and development in the Lachlan Valley, bringing together opposing sides of politics for the benefit of the region.

[7] Reg Hailstone was the nominated Country Party candidate for the 1953 New South Wales state election, electorate of Young.