This list includes all Oscar hosts ever. Since the Academy Awards ceremonies began in 1929, 73 different people have hosted or co-hosted the event. Some have hosted multiple times, but none holds a candle to Bob Hope. The actor/comedian hosted the Oscars a record 18 different times, beginning in 1940. Other multiple hosts or co-hosts include Billy Crystal (8 times), Johnny Carson (5 times), Jack Lemmon (4 times) and Whoopi Goldberg (4 times).
Oscar hosts have included actors and actresses, film directors, musicians and comedians. Oh, and an animated Disney character. Yes, in 1958, Donald Duck co-hosted the Academy Awards alongside Bob Hope, David Niven, James Stewart, Jack Lemmon and Rosalind Russell. Donald didn't actually appear on stage, only on film, but this marks the only time any animated character has officially hosted the Oscars.
Who are the best Oscar hosts? This list will help determine that answer.
http://www.ranker.com/list/all-oscar-hosts/oscar-grouch,
Bob Burns
1938
Conrad Nagel
1930, 1932 (Co-host with Lionel Barrymore), 1953 (Co-host with Bob Hope)
Douglas Fairbanks
1929, Co-host with William C. deMille
Frank Capra
1936
George Jessel
1937
Irvin S. Cobb
1935
Lawrence Grant
1931
Lionel Barrymore
1932, Co-host with Conrad Nagel
William C. DeMille
1929 (Co-host with Douglas Fairbanks), 1930
Will Rogers
1934