Wetterau I is an electoral constituency (German: Wahlkreis) represented in the Bundestag.

As of the 2021 federal election, it comprises the entirety of the Wetteraukreis district excluding the municipalities of Altenstadt, Büdingen, Gedern, Glauburg, Hirzenhain, Kefenrod, Limeshain, and Ortenberg.

The constituency was first represented by Wilhelm Knothe of the Social Democratic Party (SPD) from 1949 until his death in 1952.

Fellow party member Kurt Moosdorf won the subsequent by-election, but Willi Richter replaced him as SPD candidate and representative in the 1953 federal election.

Nina Hauer won the constituency for the SPD in 1998 and served three terms.

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.

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