Cognomen Demecillo (Demecillo 
) , globally, is quite a rare family name. The cognomen Demecillo is habitual in Philippines, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Saudi Arabia.
| VARIANT | COUNTRY |
|---|---|
| Demecillo | Saudi Arabia, United Arab Emirates, Philippines, United States, Canada |
| cydthealee demecillo Filipino volleyball player, PH (b. 1993) |
|
Ma, Kaye, Raul, Rosa, Rose, Roda, Roel, Rene, Rine, Riza, Ruby, Ruth, Rudy, Ruel, Ryan, Dina, Dyvi, Galo, Gina, Glen, Leah, Jade, Aida, Anne, Anna, Alma, Fe, May, Ana, Kya, Paz, Roy, Rey, Leo, Luz, Jay, Jose, Joy, Jim, Ivy, Ian, Mary, Mark, Mara, Mila, Mike, Myra, Alan, Jun, and Joan