- College of Liberal Arts (1901-1932)
- College of Arts and Sciences (1932-present)
Charles William Super* - 1901-1907 - [Classical Languages]
Edwin Watts Chubb** - 1907-1935 - [English]
Walter Sylvester Gamertsfelder*** - 1935-1943 - [Philosophy]
George William Starcher**** - (Acting) - 1943-1945 - [Mathematics]
Walter Sylvester Gamertsfelder- 1945-1952
George William Starcher- 1952-1956
Rush Elliot***** - 1956-1966 - [Zoology]
George Roger Klare****** - 1966-1968 - [Psychology]
Jesse Harold Day- (Acting) - 1968-1969 - [Chemistry]
George Roger Klare- 1969-1971
Jesse Harold Day- (Acting) - 1971-1972
John Gibson Jewett- 1972-1976 - [Chemistry]
James L. Bruning (Acting) - 1976-1977 - (Psychology)
William F. Dorrill- 1977-1984 - [Political Science]
George Roger Klare- (Acting) - 1984-1985
Frank Donald Eckelmann- 1985-1994 - [Geology]
Harold Molineu- (Interim) - 1994-1996 - [Political Science]
Leslie Abel Flemming- 1996-2005 - [Linguistics]
Benjamin M. Ogles# - 2005-2011 - [Psychology]
Howard D. Dewald- (Interim) - 2011-2012 - [Chemistry]
Robert A. Frank- 2012- 2018 - [Psychology]
Joseph Shields#- 2018- (Physics & Astronomy)
Florenz Plassmann- 2019 (Economics & Political Sciences)
*- President Ohio University: 1883-1896 and 1899-1901
**- Acting President: 1920-1921 and 1934-1935
***- President Ohio University: 1943-1945; 1st Trustee Professor: 1951
****- Dean University College: 1948-1952
*****- Dean University College: 1952-1956
******- Distinguished Professor: 1979
# - Interim Dean