The community of Titisee lies on the north shore of Titisee, a lake in the eastern Feldberg in the Black Forest, which ranges from 780 to 1 192 m above sea level. The community of Neustadt is found 5 km to the east. The town lies on a small river called the Seebach (Lake Brook) as it comes in from Feldberg-B�rental to feed Titisee, as the Gutach (Good Water) as it flows out of the lake, and east of Neustadt, where it merges with the Haslach to become a whitewater torrent, as the Wutach (Furious Water). After flowing out of the town, it passes through the well known Wutachschlucht (Wutach Gorge), and ends by emptying into the Rhine.
Titisee-Neustadt's highest point is the Hochfirst, a peak overlooking the lake on the municipal boundary with Lenzkirch and marked by the Hochfirst Tower. It is 1 192 m high
