Leutkirch im Allgäu is a former Free Imperial City located in south-eastern Baden-Württemberg, Germany.

The town was created with the merger of the villages of Ufhofen and Mittelhofen and vestiges of those settlements were found under the old church of St. Martin.

Like the majority of the other Free Imperial Cities, Leutkirch went through considerable internal strife during the Protestant Reformation.

In 1577 Leutkirch joined other Lutheran Free Imperial Cities in signing the Formula of Concord.

The town suffered heavily during the Thirty Years' War and the number of inhabitants fell drastically.

From the Peace of Westphalia onward, Leutkirch was to remain one of the smallest and least conspicuous of the 50 Free Imperial Cities of the Empire.

In the course of the mediatisation of 1802-03, Leutkirch was not spared the fate of the great majority of the 50 Free Imperial Cities of the moribund Holy Roman Empire and lost its independence.

The largest immigration groups come from Turkey (440 people), Italy (175), Kosovo (98), Austria (86) and Bosnia & Herzegovina (65).

[6] According to the 2011 census, 70.3% of Leutkirch residents were Catholic, 12.3% Protestant, 0.8% Orthodox, and the rest belonged to other religious communities or none at all.

In the 2021 state elections in Baden-Württemberg, the conservative Christian Democratic "CDU" was the most successful party in Leutkirch with 36.8% of votes.

The town is connected by several bus lines with Isny and Bad Wurzach, among others, and belongs to the Bodensee-Oberschwaben Verkehrsverbund (bodo).

[9] At the end of 2015, it was announced that the financing of the 250 million euro project had been secured; approximately 1,000 vacation homes and a large covered center with stores, restaurants, entertainment facilities and a large bathing and spa area were to be built by the end of 2018.

As a supporter of the Counter-Reformation, Truchsess Froben had the church and monastery (Hauskloster) built first, and the castle after.