Hurricane Helene was one of the strongest hurricanes of the 2006 Atlantic hurricane season. It is tied with Hurricane Gordon, which was also very strong. It was the ninth tropical storm, fourth hurricane and second strong hurricane of the 2006 Atlantic hurricane season.

Helene was a long Cape Verde-type hurricane that formed in the extreme southeastern part of the North Atlantic Ocean. When it was at its strongest, it was a Category 3 hurricane on the Saffir-Simpson Hurricane Scale. It reached this level as it travelled across the central Atlantic. It never hit land until the very end of its life as a weak extratropical cyclone. It only had a small effect in the northern British Isles.