Surname Decamillis (Decamillis 
) , in all the world, is a rare family name. The last name Decamillis is habitual in Canada, where it is a very rare surname, the United States, and Italy.
| VARIANT | COUNTRY |
|---|---|
| Decamillis | Canada, United States, Italy |
| joe decamillis American football coach, US (b. 1965) |
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| john decamillis college basketball player (1983–1986) Eastern Kentucky |
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Ara, Mason, Susan, Chris, Bryan, Karen, Kelly, Peter, Renee, Debra, Irma, David, Larry, Jason, Jesse, Terry, Nancy, Emily, Frank, Marylu, Sharon, Gavin, Eric, Nick, Tate, Amy, Pia, Ray, Ron, Joe, Jim, Mary, Mike, Anna, Cody, Paul, Rina, Ryan, Deek, Dani, Dana, Dori, Lisa, Jack, John, Jill, Steven, and Ashley