Steinfurt III is an electoral constituency (German: Wahlkreis) represented in the Bundestag.

It is located in northern North Rhine-Westphalia, comprising the eastern part of the Steinfurt district.

As of the 2021 federal election, it comprises the municipalities of Emsdetten, Greven, Hörstel, Hopsten, Ibbenbüren, Ladbergen, Lengerich, Lienen, Lotte, Mettingen, Recke, Saerbeck, Tecklenburg, and Westerkappeln from the Steinfurt district.

In the 1980 through 1998 elections, it comprised the municipalities of Emsdetten, Greven, Hörstel, Hopsten, Ibbenbüren, Ladbergen, Lengerich, Lienen, Lotte, Mettingen, Recke, Rheine, Saerbeck, Tecklenburg, and Westerkappeln from the Steinfurt district.

Gottfried Köster was elected in 1980, and succeeded by Constantin Heereman von Zuydtwyck in 1983.

Reinhold Hemker of the Social Democratic Party (SPD) was elected in 1994 and served until 2009, when Dieter Jasper of the CDU became representative.

Yellow background denotes an electorate win by a list member, or other incumbent.

Yellow background denotes an electorate win by a list member, or other incumbent.

Yellow background denotes an electorate win by a list member, or other incumbent.