Denmark's red-and-white Dannebrog flag is recognized as the oldest national flag design still in continuous official use, with legend dating its origin to a battle fought in 1219. Guinness World Records officially credits Denmark with holding this title.
Record no. MRB-2026-005885
Oldest National Flag Still in Use
Reference Record – Not Certified
This record is compiled from publicly available sources for reference. It has not been examined or certified by The Book of World Records.