Arnold von Bruck [also Arnold de Pruck, Arnoldus Brugensis, indicating his origin] (ca.1500 - 06/02/1554) was a Franco-Flemish composer of the Renaissance, active in several Habsburg courts. He was one of the most famous and influential composers in German-speaking areas during the first half of the 16th century, the period of the Protestant Reformation; however he seems to have remained a Roman Catholic. Bruck worked at the Stephansdom in Vienna, Austria, and wrote music for the chapel choir in the 1540s.He was born in Bruges, and received at least part of his musical training as a choirboy in the chapel of Charles V, where he probably studied with Marbrianus de Orto. Pierre de La Rue was also a member of the that chapel, which was one then of the most distinguished musical organizations in Europe. Bruck likely left around 1519, and his whereabouts are unknown until 1527, when he became a priest in the Pas-de-Calais, in the Thérouanne diocese. That same year he became court Kapellmeister for Archduke Ferdinand, before he was emperor; Bruck was to retain this post for all of his active career, retiring at the end of 1545. He held many other posts and received honors during his tenure as Kapellmeister, some in distant parts of the Empire. Some of the places at which he was granted positions or honors included Ljubljana Cathedral, Zagreb Cathedral, and Kočevje, in modern Slovenia. Beginning in 1543, Pieter Maessens joined him in the Viennese court chapel as assistant Kapellmeister; Maessens took over the post of principal Kapellmeister on Bruck's retirement on January 1, 1546. Some time after this date Bruck moved to Vienna, and in 1548 to Linz. He continued to compose after his retirement, completing some works for the choir of Stephansdom in Vienna in 1547. He died in Linz.

In 1527 Bruck succeeded Heinrich Finck as court Kapellmeister at Archduke Ferdinand?s court. He remained in this post until his retirement on December 31 1545. Bruck was highly regarded by his contemporaries.