Worldwide, Rentko (Rentko 
) is an extremely rare unknown gender first name. Predominantly, Rentko is the last name as well as the forename.
Mr, Ashley, Bernie, Brandy, Denise, Gerard, Joseph, Thomas, Yvonne, Marilyn, Morgan, Michael, Roberta, Dolores, Douglas, Theresa, Zachary, Cheyanne, Kathleen, Katerina, Katarina, Barbara, Lorna, Linda, Leigh, Ms, Eve, Marc, Mike, Msim, Beth, Paul, Rita, Doug, Lori, Jack, Jami, John, Susan, Carol, Karen, Kevin, Kiley, David, Gregg, Ginny, Kimberly, and Patricia