Sluis-Aardenburg (population: 6,567) is a former municipality in the southwestern Netherlands, in the province of Zeeland. The municipality covers an area of 83.48 km² (of which 0.89 km² water).
The former municipality of Sluis-Aardenburg consists the following towns, villages and townships: Aardenburg, Draaiburg, Eede, Heille, Retranchement, Sint Anna ter Muiden, Sint Kruis, Sluis, Terhofstede, Zwindorp, which are now part of Sluis.