Family name Thielsen (Thielsen 
) , around the world, is a rare last name. The last name Thielsen is characteristic of Denmark, where it is quite a rare surname, Germany, where it is a rare surname, and the United States, where it is a very rare surname. Much less frequently, Thielsen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thielsen | Germany, United States, Canada, Denmark, Brazil |
|
evald thielsen (b. 1851) |
|
| oscar thielsen (b. 1887) |
|
|
| eigil thielsen Danish association football player (1914-2000), DK (b. 1914) |
|
Mr, Lene, Lisa, Lise, Lone, Lyse, Jane, Jack, John, Jens, Jeff, Tyce, Nick, Nina, Eric, Erik, Erin, Emil, Fink, Åse, Maria, Sarah, Greg, Gary, Dirk, Dale, Ms, Bo, Mia, Kai, Pat, Dan, Jan, Joy, Nic, Ian, Sakda, Mist, Anna, Anne, Adam, Bent, Kyle, Kyra, Knut, Paul, Roni, Rick, Myra, and Shaye