Frank Tyndall Broun (31 May 1876 – 1 April 1930) was an Australian politician who was a member of the Legislative Assembly of Western Australia from 1911 to 1914 and again from 1917 to 1924.
After a period working for his father, Broun acquired an estate of 5,000 acres (20 km2) near Beverley, on which he farmed both sheep and wheat.
He was elected to the Beverley Road Board in 1902, and remained a member for most of the following 20 years, including as chairman on three occasions (1908–1909, 1911–1914, and 1917–1919).
[2] In June 1919, he was selected to replace John Scaddan (another Country Party member) as Colonial Secretary in the government of James Mitchell, who had become premier only the previous month.
After the 1921 state election, Broun was also made Minister for Public Health, replacing Hal Colebatch.