Family name Rizio (Rizio 
) , in the world, is a rare cognomen. The surname Rizio is habitual in Australia, where it is a rare surname, Italy, and New Zealand. Not in comparison with a country's population, it is the most numerous in the United States, Australia, and Italy. Very seldom, Rizio is the forename as well as the last name.
Mau, Leon, Lino, Luiz, John, Joan, Jeff, Theo, Toni, Nick, Noah, Eric, Emma, Irma, Ivan, Olga, Yves, Maria, Marie, Mauro, Shari, Susan, Glen, Steve, Gigi, Greg, Ana, Ann, Kim, Pat, Pia, Dan, Lee, Liz, Joe, Jim, Teo, Eva, Marc, Mary, Mats, Mike, Anna, Paul, Rita, Ruth, Gail, Gina, and Alice