Is it possible to enter the US with a Swedish passport?

Yes, it is possible to enter the United States with a Swedish passport. Swedish citizens can enter the United States without a visa for tourism or business stays of 90 days or less ¹ ². Here are some additional requirements ¹: - Approved online ESTA registration before entry - A valid Swedish passport for the duration of the stay in the U.S. - Swedish national characters in the name on the ESTA application should be entered as they appear in the Machine Readable part of the passport (e.g., ‘Å’ as ‘AA’, ‘Ä’ as ‘AE’, ‘Ö’ as ‘OE’)