Around the globe, Diongco (Diongco 
) is an extremely rare male forename. Much more prevalently, Diongco is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Diongco | United States, Canada, Australia, Philippines |
Aj, Lily, Jane, Jose, John, Jona, Joel, Jean, Nida, Fely, Weny, Maria, Mario, Meldy, Myrna, Sarah, Susan, Ariel, Arnel, Agnes, Ailen, Bryan, Lino, Leah, Glyn, Gigi, Ash, Kim, Pio, Rai, Roy, Joy, Mary, Mark, Mike, Seth, Karen, Alan, Aika, Cris, Kent, Rose, Rene, Rico, Rina, Ruel, Rhea, Ryan, Adie, and Pedro