All over the world, Thelian (Thelian 
) is a very rare boy's first name. The first name Thelian is habitual in Latin America and the Caribbean, particularly Mexico, where it is an extremely rare male name. More frequently, Thelian is the last name as well as the forename.
Pat, Werner, Melanie, Suzanne, Casimer, Kristen, Gregory, Josette, Jessica, Helmuth, Michelle, Kathleen, Patricia, Rosemary, Reinhold, Lorraine, Jennifer, Theresia, Victor, Edward, Taylor, Ronald, Ron, Mike, Rick, Dawn, Greg, John, Scott, Cpc-I, Claudette, Karen, Debra, Doris, Laine, Tyler, Harry, Helga, Andrew, Robert, Kathy, and Jacqueline