Josiah Thomas was an Australian politician. He was elected to the House of Representatives at the inaugural 1901 federal election, representing the Labor Party. Thomas served as a minister in Andrew Fisher's first two governments, as Postmaster-General and Minister for External Affairs (1911–1913). He joined the Nationalist Party after the 1916 Labor split and transferred to the Senate at the 1917 election, serving as a Senator for New South Wales from 1917 to 1923 and from 1925 to 1929.
- Occupation
- politician, diplomat, trade unionist, miner
- Position held
- member of the Australian Senate, member of the Australian House of Representatives, Member of the New South Wales Legislative Assembly, Minister for Foreign Affairs (Australia)
- Citizenship
- Australia