Cognomen Couplin (Couplin 
) , across the world, is a very rare family name. The last name Couplin is habitual in Northern America, particularly the United States, where it is a very rare surname. Much less frequently, Couplin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Couplin | India, United States |
| william l. couplin American politician – Minnesota -- "W.L., Wm. L." House 1870-71 (District 19), US (b. 1818) |
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| jerome couplin American football player, US (b. 1991) |
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La, Denise, Geneva, Jerome, Nicole, Ernest, Walter, Carolyn, Claudia, Crystal, Angela, Gregory, Lionell, Jermika, Octavia, Shavelle, Courtney, Brittany, Patricia, Lachelle, Theodore, Leonard, Jacquetta, Andrew, Steven, Nai, Ivi, Mika, Anna, Bria, Rose, Dawn, Ella, Allan, Albert, Carol, Buddy, Larry, Loren, Janet, Janai, Jayce, Naomi, Shawna, Serita, Brian, and Jacqueline