Cognomen Maddigan (Maddigan 
) , all around the world, is a rare family name. The cognomen Maddigan is habitual in Australia, where it is a rare surname, Canada, and New Zealand. In absolute terms, it most frequently occurs in the United States, Canada, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Maddigan | United Kingdom, Australia, United States, Canada, New Zealand |
| judy maddigan Australian politician, AU (b. 1948) |
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| sheri l. maddigan researcher |
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| kristofer maddigan musical artist |
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| joy maddigan researcher (ORCID 0000-0003-2940-3631) |
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