The Taaienberg is a hill in the municipality of Maarkedal, in the Belgian province of East Flanders.

The site is best known from road bicycle racing, as it is a regular climb in the Tour of Flanders.

The Taaienberg is of strategic importance in the Tour of Flanders, depending on its position in the route.

It is also occasionally included in the Omloop Het Nieuwsblad, the Three Days of De Panne and Dwars door Vlaanderen.

The status of the Taaienberg among other hills has grown in the last 15 years, as it is the favourite climb of Belgian cycling icon Tom Boonen.