Family name Heffernan (Heffernan 
) , globally, is a common last name. The last name Heffernan is characteristic of Ireland, where it is quite a common surname, Jersey, and Australia, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in the United States, Ireland, and Australia.
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| Heffernan | Canada, Australia, United States, United Kingdom, Ireland |
| james heffernan GB (b. 1785) |
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| james heffernan (b. 1788) |
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edward j. heffernan politician in Massachusetts, US, US (b. 1858) |
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| heffernan considine (1816-1895) (b. 1816) |
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josephine heffernan Irish nurse, IE (b. 1876) |
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jeremiah heffernan Canadian politician, CA (b. 1884) |
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michael heffernan Irish politician, IE (b. 1885) |
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james j. heffernan American politician (1888-1967), US (b. 1888) |
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frank heffernan Canadian ice hockey player (1892-1938), CA (b. 1892) |
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john j. heffernan politician in Massachusetts, US, US (b. 1893) |
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| ted heffernan Australian rules footballer, AU (b. 1869) |
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| william j. heffernan American politician, US (b. 1872) |
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| heffernan james considine (1883-1916) (b. 1883) |
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| john heffernan Roman Catholic bishop (b. 1883) |
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bill heffernan Australian politician, AU (b. 1943) |
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