In the entire world, Duncumb (Duncumb 
) is an extremely rare unknown gender given name. More frequently, Duncumb is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Duncumb | Poland, Norway, United Kingdom, Isle of Man, New Zealand |
Mr, Alison, Andrew, Robert, Jackie, Jadran, Joseph, Hannah, Fraser, Michael, Charlie, Katrina, Kenneth, Margaret, Patricia, Lorraine, Stuart, Morgan, Donna, Peter, Ms, Sam, Ben, Pat, Lee, Jay, Tom, Nicholas, Bill, Jean, Emma, Iain, Susan, Carol, Colin, Clare, John, and Elizabeth