Church of St Jude Thaddeus, Roman Catholic parish church in Buchholz, Duisburg, Germany

St. Judas Thaddäus is a Roman Catholic church in Duisburg-Buchholz, built as a hall church by Cologne archdiocesan master builder Heinrich Renard and in use since 1900. Architect Alfred Tepe added two transepts in 1909–1910. The church has no bell tower; in 2002 its facade was redesigned in the form of a celestial axis.

In 1898 the foundation stone was laid for a church planned as St. Josef, renamed St. Judas Thaddäus at the wish of a major donor. Cologne archdiocesan master builder Heinrich Renard built the nave, in use from 1900; Alfred Tepe added two transepts in 1909–1910. Damaged repeatedly from 1942, it was usable again by late April 1945 and rededicated in 1958 after a regothicising removal.

The church is named after Saint Jude Thaddeus, to whom it was dedicated at the request of a major donor; it was originally planned as St. Josef, and the St. Josef church building association founded in 1893 had raised the funds. Today it is the parish church of the St. Judas Thaddäus Duisburg-Süd parish in the Diocese of Essen and the centre of a parish with 11 church locations.

The church has no bell tower; since 2002 its facade has been shaped as a "Himmelsachse" (celestial axis), a feature to look for when approaching. It stands in Duisburg-Buchholz and is the parish church of St. Judas Thaddäus Duisburg-Süd, a parish with 11 church locations. The 1991 Seifert organ was enlarged in 2016.

Because the church has no bell tower, its facade was reshaped in 2002 as a "Himmelsachse", an axis pointing skyward. The organ, built by Romanus Seifert & Sohn, was installed in 1991 and enlarged in 2016. The building became usable again at the end of April 1945 after wartime damage.