Hennessy may refer to: People Hennessy (surname), includes list of people with the name Hennessy Carolina, a cast member of Love & Hip Hop: New York Business and trade Hennessy, a brand of cognac Hennessy's, a defunct Montana-based department store Hennessy & Hennessy, a former architectural partnership in Australia Hennessey Performance Engineering, an American automotive tuning house Places Hennessy Road, a main thoroughfare in Hong Kong Hennessy (constituency), a constituency in Wan Chai District Sport Hennessy Gold Cup Hennessy Gold Cup (Ireland) Other uses Hennessy (film), a 1975 film about the Irish Republican Army Hennessy–Milner logic, in computer science Hours of Hennessy, aka The book of hours of Our Lady, a 1530 manuscript illustrated by Simon Bening of Bruges See also Hennessey (disambiguation)