Ole Einar Bjørndalen est né le 27 janvier 1974 en Norvège. Il est marié avec Darya Domracheva depuis le 17 juillet 2016. Lui et Darya Domracheva ont un enfant. Il a été marié avec Nathalie Santer.
[On his watch collection] I have over thirty of them. But my contract with Certina is great for me... I now have a watch with my own autograph. You know, I wanted a sponsor whose product I could identify with. Other watch makers gave me offers, but I did not like them, and I can't pretend. I wanted to associate myself with someone full of conviction. Somehow, it matters.