William Alexander McLaren (8 May 189830 September 1973) was a senior Australian public servant. He was Secretary of the Department of the Interior between 1949 and 1963.
Bill McLaren was born in Sydney on 8 May 1898. His parents were William McLaren and Esther May Manning.
He graduated from Sydney University.
McLaren moved to Canberra in 1945 into the Australian Public Service as the Commonwealth Director of War Service Land Settlement.
Between 1949 and 1963, McLaren was Secretary of the Department of the Interior.
McLaren died on 30 September 1970.
McLaren was made a Commander of the Order of the British Empire in 1954.