Bad Honnef (German: [baːt ˈhɔnəf] ⓘ) is a spa town in Germany near Bonn in the Rhein-Sieg district, North Rhine-Westphalia.

To the north it lies on the slopes of the Drachenfels (“Dragon's Rock”) mountain, part of the Siebengebirge.

[3] Bad Honnef includes several districts, such as Aegidienberg, Rhöndorf, and Lohfelderfähre, which is located near the Rhine ferry crossing to Rolandseck.

Also, German politician and leader of the Free Democratic Party Guido Westerwelle was born in Bad Honnef.

Since the 1980s Bad Honnef has developed into an important place for conferences in Germany.