Gustav Erik Niklas Adalberth (born 1981) is a Swedish entrepreneur and philanthropist, known as the founder of Norrsken Foundation, a social impact organization founded in 2016.

During junior high school, he made money, among other things, by forging identification cards and government coupons before he was discovered.

He graduated from the Stockholm School of Economics, where with his childhood friend Sebastian Siemiatkowski and Victor Jacobsson, he founded the finance company Klarna in 2005.

[4] In June 2020, it was announced that the major banks Nordea and SEB as well as the EU, through the European Investment Fund EIF, chose to invest in Norrsken's venture capital fund Norrsken VC.

Previous investors in Norrsken VC include the Swedish state's Saminvest and the H&M family Perssons Ramsbury Invest.