Worldwide, Niarhos (Niarhos 
) is an extremely rare unknown gender given name. Much more prevalently, Niarhos is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Niarhos | Brazil, United States, Australia |
Anne, Amanda, Cheryl, Costas, Costos, Robert, Denise, Dreama, George, Thomas, Melanie, Michael, Stephen, Anthony, Aggelos, Carolyn, Timothy, Heather, Frances, William, Margaret, Kathleen, Sylvia, Stella, Ellen, Tammy, Bill, Gary, Luke, John, Tony, Toni, Tedd, Tina, Marie, Susie, Rosemary, Steve, Chris, Paula, Peter, Randy, Robin, Renee, Debra, Gabby, Laura, James, Agnes, and Theodore