Hennessey may refer to:
Names
edit- Hennessey, Irish surname
Places
edit- Hennessey, Oklahoma, United States
- Hennessey Formation, Oklahoma, United States
- Lake Hennessey, California, United States
Media and entertainment
edit- Hennesey, a 1959–1962 television series
- Crossing Hennessy, a 2009 Hong Kong film
Business and trade
edit- Hennessey Performance Engineering, a sports car company
- Hennessey cognac, a cognac produced by Jas Hennessey & Cie..
Vehicles
edit- Hennessey Venom GT, a record-breaking sports car built by Hennessey
- Hennessey Venom F5
- Hennessey Monoplane