Cognomen Dunion (Dunion 
) , across the world, is a rare family name. The surname Dunion is characteristic of the United Kingdom, where it is a rare surname, New Zealand, where it is a very rare surname, and France. Measured by absolute frequency, it most frequently occurs in the United Kingdom, the United States, and France. Much less frequently, Dunion is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dunion | France, New Zealand, United Kingdom, United States, Nigeria |
| pierre dunion BE (b. 1827) |
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kevin dunion Scottish civil servant and executive; Rector of the University of St Andrews (b. 1955) |
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| jason dunion researcher ORCID ID = 0000-0001-7489-0569 |
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| thomas john dunion D.A. Idaho State University 1995 |
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Mr, Carol, Barry, Bruce, Bilbo, Blain, Karen, Kenny, Kelly, Kevin, Chris, Paige, David, Diane, Laura, Linda, James, Jason, Joyce, Jenny, Julie, Peter, Alain, Scott, Sarah, Ms, Ali, Ann, Ken, Pat, Rob, Tom, Mary, Mark, Sean, Anne, Paul, Dale, Gary, John, Jean, Tara, Elsa, Eric, Hugh, Iain, Théo, and Trish