Worldwide, Christiaansen (Christiaansen 
) is an extremely rare unknown gender first name. Much more frequently, Christiaansen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Christiaansen | Netherlands, Belgium, Canada, United States, South Africa |
Mr, Thom, Tori, Nick, Eric, Ilse, Owen, Marie, Sanne, Sarah, Jeff, Sonja, Chloe, Berti, Britt, Brian, Brent, Bryce, Kayla, Krijn, Paula, Scott, Rylan, Jean, Lore, Ann, Amy, Bob, Bud, Kim, Jon, Wim, Mark, Matt, Jaap, Miko, Alli, Anke, Arnd, Cory, Kyra, Paul, Dana, Gail, Lisa, Sjef, and Debra