Worldwide, Tiesi (Tiesi 
) is a very rare epicene first name. The given name Tiesi is characteristic of Southern Europe, particularly Italy, where it is a very rare gender-neutral name. More prevalently, Tiesi is the last name as well as the forename.
Mr, Nick, Eric, Erin, Fran, Irma, Maria, Marco, Marli, Sheri, Susan, Sofia, Andre, Carlo, Carla, Carol, Cesar, Clara, Brian, Bruno, Bryce, Karen, John, Kathy, Jose, Lori, Ms, Ann, Ada, Bre, Kay, Gia, Joe, Jen, Jim, Tom, Ida, Mara, Mike, Sara, Aldo, Anna, Kate, Rosa, Ryan, Gene, Lina, Luci, and Katia