Cognomen Loncon (Loncon 
) , in the world, is quite a rare surname. The surname Loncon is characteristic of Chile, where it is quite a rare surname, Argentina, and the United States, where it is a very rare surname.
Ana, Gabi, Lili, Lisa, Lida, Lori, Luis, Jose, John, Jean, Jeff, Juan, Nora, Nery, Elio, Elsa, Elba, Hugo, Flor, Ines, Iris, Irma, Doug, Olga, Ruth, Rene, Abi, Amy, Ada, Luz, Tim, Emi, Ema, Eva, Ida, Mary, Mark, Manu, Seba, Alan, Abel, Aida, Axel, Codi, Raul, Rosa, Rony, Rita, and Yuri