sir murray louis tyrrell (1 december 1913 – 13 july 1994) was an australian public servant. he was the official secretary to the governor-general of australia from 1947 to 1973. in his record term of 26 years, served six governors-general. in 1959, he was made a commander of the order of the british empire (cbe). in 1977, he was named australian of the year with dame raigh roe.