Cognomen Sinkeldam (Sinkeldam 
) , all around the world, is a rare family name. The cognomen Sinkeldam is habitual in Netherlands, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada. In absolute terms, it is the most numerous in Netherlands, the United States, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Sinkeldam | New Zealand, Canada, United States, Netherlands |
|
ramon sinkeldam Dutch road cyclist, NL (b. 1989) |
|
| ad sinkeldam (b. 1941) |
|
Amy, Steef, Stacy, Andre, Anouk, Arjan, Aaron, Carla, Casey, Brian, Kelly, Paula, Ramon, Ruben, Laura, Jacob, Joost, Elsie, Edith, Frank, Sacha, Wouke, Mieke, Ilse, Bob, Rik, Leo, Joy, Jop, Tim, Ina, Anne, Cora, Cory, Rick, Daan, Gary, John, Theo, Teun, Eric, Erik, Hans, Mason, and Marijn