St. Thomas church, Protestant church in Lübeck, Germany.

St. Thomaskirche is a Protestant church in Lübeck distinguished by clean architectural lines and modern design typical of post-World War II religious buildings. The structure combines functional elements with features that serve the needs of a contemporary congregation.

The church was built in 1951 and represents Lübeck's religious recovery following the devastation of World War II. Its construction reflects how the city rebuilt its spiritual institutions during this period of renewal.

The parish and church take their name from the Apostle Thomas, and the round stained-glass window shows scenes from his life, centred on the risen Christ's words to the doubting Thomas in John 20:27. The glass was made in the Lübeck workshop of Berkentien to a design by Hilde Ferber. Since 1 January 2022 St. Thomas has belonged to the merged Marli-Brandenbaum parish.

St. Thomas stands in Marli, in Lübeck's St. Gertrud district, not in the city centre; reach it by bus or on foot from the Marlistraße area. The church and parish buildings are a listed ensemble, with the 1960s and 1970s extensions excluded from the protection. A 2025 buildings plan foresees giving up St. Thomas as a regular preaching site, so check locally before travelling.

The building displays a rare combination of 1950s modern architecture with traditional religious functions, setting it apart from the city's older Gothic Revival churches. Its spare, unadorned design offers a stark contrast to the ornamental styles found elsewhere in Lübeck.