The Hohensteinerbach (with Haißbach) is an almost 6.5 km long left and south-eastern tributary of the Nidda in the Wetterau region of Hesse.

[citation needed] The Hohensteinerbach is formed by the confluence of the Haißbach and the Buchborngraben, east of the Nidda district of Michelnau.

The Buchborngraben is the 2.5 km long, southern and left source stream.

The resulting stream, the Hohensteinerbach, flows through the nature reserve for just under a kilometre through mixed woodland and then through the village of Michelnau.

There, in the village, it is fed first on the left by a meadow ditch and then on the other side by the Mörsbach.