Michael or Mike Hennessy or Hennessy may refer to:
- Michael Hennessey (born c. 1948), American attorney and former Sheriff of San Francisco
- Mike Hennessey (1928–2017), English music journalist and jazz pianist
- Michael Hennessy (fl. 1920s–1930s), Irish politician and businessman
- Mike Hennessy (fl. 1990s–2000s), British rower,
- Michael "Mickey" Hennessy (1915—1991), Canadian boxer and politician
This disambiguation page lists articles about people with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.