O'Hearn
O'Hearn or O'Hearne is an English/Irish surname. As an English surname, it can derive firstly from an early medieval nickname for someone thought to resemble the Heron bird. Notable people with the surname include:
- Andrew O'Hearne, American politician
- Christine O'Hearn, American judge
- Denis O'Hearn, American sociologist
- Don O'Hearn, Canadian ice hockey player
- Ed O'Hearn, American football player
- Eileen O'Hearn, American actress
- George E. O'Hearn, American football coach
- John O'Hearn, American football player
- Kate O'Hearn, Canadian writer
- Kevin O'Hearn, American politician
- Melinda O'Hearn, American actress, singer and fitness model
- Mike O'Hearn, American bodybuilder
- Patrick O'Hearn, American musician and composer
- Peter O'Hearn, British-Canadian computer scientist
- Robert O'Hearn, American set designer
- Ryan O'Hearn, American baseball player
- Sean O'Hearn, American soccer player
- Walter O'Hearn, Australian politician
- Walter D. O'Hearn, Canadian journalist
- Zooko Wilcox-O'Hearn, American computer security specialist