In all the world, Oncke (Oncke 
) is an extremely rare unknown gender first name. Much more prevalently, Oncke is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Oncke | United States, Spain, South Africa |
Jan, Ockert, Willem, Miranda, Stephen, Andries, Abraham, Belinda, Phillip, Royston, Richard, Jandré, Jacobus, Jacques, Jessica, Tameron, Hermien, Felicia, William, Michelle, Angeline, Caroline, Elvene, Truridah, Joseph, Larnay, Mona, Sara, Anna, Eric, Mario, Marco, Margo, Sarah, Carol, Brian, Cornelia, David, Jason, Johan, Tanya, Wayne, Zeone, Martin, Miriam, Sarene, Arnold, Corrie, Louis, and Kendrick