Look up Duplessis in Wiktionary, the free dictionary.
Duplessis may refer to:
- Duplessis (surname)
- Maurice Duplessis (1890–1959), the 16th premier of Quebec
- Duplessis (TV series), a historical television series about Maurice Duplessis that aired in Québec in 1978
- Duplessis Orphans scandal
- Maurice Duplessis (1890–1959), the 16th premier of Quebec
- Duplessis (provincial electoral district), provincial electoral district in Quebec, Canada
- Duplessis, Louisiana, an unincorporated community in the United States