Zeeuws-Vlaanderen is the part of the Netherlands on the left shore of the Scheldt river (here called Westerschelde), nr. 9 in the satellite image. It is in the southwest of the country and part of the province of Zeeland.

The Ghent-Terneuzen Canal (d in the image) passes through Zeeuws-Vlaanderen.

Since 2003 it consists of only three municipalities: Sluis in the west, Terneuzen in the middle and Hulst in the east.