Worldwide, Necio (Necio 
) is a rare masculine forename. The forename Necio is characteristic of the Dominican Republic, where it is a rare male name, Brazil, where it is a very rare boy's name, and Philippines. More prevalently, Necio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Necio | Philippines, Dominican Republic, United States, Poland, Brazil |
El, Lito, Lyca, Jaya, Jake, Jose, John, Joan, Joar, Joel, Jovy, Jean, Jeff, Juan, June, Nida, Noel, Noli, Elsa, Edna, Erna, Mario, Liza, Leah, Gina, Gena, Fe, May, Pio, Don, Leo, Lyn, Jun, Mary, Mark, Mira, Marco, Mike, Myra, Alex, Alan, Aida, Rann, Roel, Rene, Ruel, Rhea, Ryan, Migz, and Marek