All around the world, Kostello (Kostello 
) is an extremely rare male first name. More frequently, Kostello is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kostello | Germany, South Africa, United States, India, Canada |
Mr, James, Erika, Heath, Frank, Steven, Cheryl, Kailee, Kerrie, Robert, Debbie, Donald, George, Lauren, Janice, Joseph, Joan E, Teresa, Trista, Travis, Haruko, Michael, Janet, Louis, David, Kevin, Don, Lee, Lou, Adam, Dave, Dale, Dawn, Geri, Gene, Greg, Shelley, Lana, John, Jeff, Tony, Eric, Steve, Amber, Craig, Bruno, Karen, Kathy, Lisa, and Anthony