Frederick Penny, 1st Viscount Marchwood

Frederick George Penny, 1st Viscount Marchwood KCVO JP (10 March 1876 – 1 January 1955) was a British Conservative Party politician.

The second son of Frederick James Penny, of Bitterne, Hampshire, Penny was educated at King Edward VI Grammar School, Southampton.

Penny was a senior partner Fraser & Co., Government brokers, Singapore, and formerly Managing Director of Eastern Smelting Co. Ltd, Penang. He represented the Federated Malay States Government in negotiations with Netherlands Indies Government at Bandoeng, Java, regarding liquidation of war (1914–1918) tin stocks. He sat as Member of Parliament (MP) for Kingston-upon-Thames from 1922 until 1937 and served as Parliamentary Private Secretary to the Financial Secretary to the War Office in 1923, and as a Conservative Whip from 1926 to 1937, including as a Lord Commissioner of the Treasury from 1928 to 1929 and in 1931, as Vice-Chamberlain of the Household from 1931 to 1932, as Comptroller of the Household from 1932 to 1935 and as Treasurer of the Household from 1935 to 1937. From 1938 to 1946 he was Honorary Treasurer of the Conservative Party.