St. Martin, Idstein

St. Martin is the name of a Catholic parish and church in Idstein, Rheingau-Taunus-Kreis, Germany. The official name of the church is Katholische Pfarrkirche St. Martin. The name of the parish became St. Martin Idsteiner Land on 1 January 2017, when it was merged with five other parishes. The parish is part of the Diocese of Limburg.

St. Martin is the patron saint of Idstein, to whom a Gothic church was dedicated in 1330. The present building, designed by architect Johannes Krahn, was consecrated in 1965. It replaced a church built in 1888 in Gothic Revival style and dedicated to Mary Magdalene; this church was too small for the congregation growing after World War II.

After restoration in 2003, a new organ was installed in 2006. Church music in services and concerts, performed by several groups including a children's choir and ensembles playing historic instruments, have received attention in the Rhein-Main Region. The parish is in long-term ecumenical contact with the main Protestant church of the town, the Unionskirche, which includes two regular ecumenical services and concerts performed by joint groups of both churches.