Around the world, Якобсен (Jacobsen 
, Jakobsen , Якобсен 
) is a rare dominantly masculine, but uncommonly female first name. The first name Якобсен is habitual in Tanzania, where it is a very rare masculine name, the United States, where it is an extremely rare largely masculine, but seldom girly name, and China. Much more prevalently, Якобсен is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Jakobsen, Jacobsen | Norway, Germany, Brazil, Denmark, United States |
| Якобсен | Ukraine, Russia |
| Yakobsen | Norway, Ukraine, Bulgaria, Argentina, Russia |
Iakobsen, Jacob, Jacobs, Jacobsohn, Jacobson, Jacobsson, Jacobus, Jakob, Jakobs, Jakobsohn, Jakobson, Jakobsson, Jakobus, Джейкоб, Джейкобс, Джейкобсон, Джекобс, Джекобсон, Иаков, Якабсон, Якоб, Якобсон, Якобссон, ג'ייקוב, ג'ייקובס, ג'ייקובסון, יעקב, יעקבסון, יעקובסון, جاكوب, جاكوبس, ヤコブセン, and 雅各
Якобсен is also a name for the fictitious and mythical characters: .