Around the globe, Koutroubas (Koutroubas 
) is an extremely rare unknown gender first name. Much more frequently, Koutroubas is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Koutroubas | Greece, United States, Australia |
Kat, Joanna, Jeremy, Thanos, Violet, Ioanna, Michael, Cynthia, Barbara, Christos, Kathleen, Dimitris, Theodore, Virginia, Alexandra, Alexander, Anastasia, Christina, Katherine, Efthimios, Hrisostomos, Alexandros, George, Constadino, Amanda, Andrew, Tim, Mark, Mike, Alex, Paul, Gail, Liza, Luke, John, Nick, Maria, Megan, Chris, Carol, Kathy, Peter, David, Linda, Eleni, Vicki, Sharon, Arthur, and Konstantinos