Frederick Charles Loos (13 December 1834 – 21 August 1911) CMG was a Ceylonese lawyer and politician.
[3] On 25 April 1859 he married Jane Harriet née Keith (1838 – 1872) at the Holy Trinity Church, St Sebastian, Colombo,[4] with whom he had seven children.
[1] From 1865 to 1872 Loos served as a Councillor, representing the Maradana Seat, on the Colombo Municipal Council.
[3] In 1908 Loos was elected as the inaugural president of the Dutch Burgher Union of Ceylon,[7] a position which he served until he died.
[9] His second youngest son, George Cecil Bertram, (1884-1915) was the first Ceylonese to be killed in action during World War I, while serving as a Lieutenant in the 3rd Battalion, Worcestershire Regiment on 12 March 1915 and was buried in the Kemmel Chateau Military Cemetery in Belgium.