Globally, Heffernan (Heffernan 
) is a very rare epicene first name. The first name Heffernan is habitual in Eastern Asia, particularly China, where it is an extremely rare boy's name. Much more prevalently, Heffernan is the last name as well as the forename.
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| Heffernan | United Kingdom, Australia, Ireland, United States, Canada |
Heffernan is also a name for the fictitious and mythical characters: .
| urban heffernan Australian cricketer (1901-1974), AU (b. 1901) |
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| kalyn heffernan American rapper, US (b. 1901) |
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| roy heffernan Australian professional wrestler, AU (b. 1925) |
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| vin heffernan Australian politician (1935-2002), AU (b. 1935) |
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| ray heffernan cricketer (1935-2014), AU (b. 1935) |
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| ray heffernan Irish hurler (b. 1963) |
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| grant heffernan Canadian ice hockey player, CA |
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| ray heffernan Irish songwriter |
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| nesbit sealy heffernan Peerage person ID=483400 |
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| fallon heffernan inline skater b. (b. 1986) |
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| junior heffernan British bicyclist and triathlete (1989-2013), GB (b. 1989) |
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| killian heffernan Irish professional darts player (born 2002), IE |
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