Sir Leonard Cecil Outerbridge, CC, CBE, DSO, CD (May 6, 1888 – September 6, 1986) was the second lieutenant governor of Newfoundland from 1949 to 1957.

After the war he worked as a lawyer in Toronto for a year before returning to St. John's to help his brother, Herbert, manage Harvey and Company Ltd. From 1923 to 1924, Outerbridge was president of the Newfoundland Board of Trade, and in 1925 headed the Charity Organization Bureau.

For the last three years of the Second World War, Outerbridge volunteered full-time as director of Civil Defence, supervising the Air Raids Precaution Team.

He was knighted in 1946 "for services as Honorary Private Secretary to the Governor of Newfoundland" as announced in the 1946 King's Birthday Honours.

He received a special service award for his work as director of the Canadian National Institute for the Blind in 1983, and, in 1985, he was made a Companion of the Order of the Red Cross.