St. Mariä Himmelfahrt, Catholic pilgrimage church in Feichten an der Alz, Germany.

St. Mariä Himmelfahrt is a three-aisled hall church, originally Gothic and later Baroque, in Feichten an der Alz. Its west tower dates from 1478, and the nave was begun in 1502 by Georg Steinbrecher and consecrated in 1522. The interior was remodeled in 1763–1765 under Franz Alois Mayr, with ceiling paintings by Franz Joseph Soll.

The church began as a pilgrimage site of uncertain origin. In 1502 Georg Steinbrecher started a new three-aisled hall church, consecrated in 1522; the west tower dates from 1478 by Jörg Waltl. Franz Alois Mayr of Trostberg directed a thorough Baroque remodelling in 1763–1765, and renovation followed after 1987.

The church serves as a focal point for Marian devotion, drawing pilgrims who come to attend services or pray quietly within its walls. It remains central to the community's religious life and connects worshippers from across the surrounding region.

The church stands in the village centre of Feichten an der Alz, in the Altötting district of Upper Bavaria, and belongs to the Pfarrverband Feichten in the Diocese of Passau. The west tower from 1478 holds a ground-floor entrance hall, the Paradiesvorhalle, with a moulded portal, which serves as the way in. The interior was renovated after 1987; visitors should check local opening times and avoid Mass times.

The organ, built by Orgelbau Sandtner in 2001, has 24 stops on two manuals and pedal, housed in a 1749 case by Anton Bayr. The four bells ring in c1-d1-f1-a1; three were cast in 1717 by Johann Heinrich Hueber in Braunau, the second in 1954 by Rudolf Perner in Passau.