Dirk Andries Flentrop, Dutch organ builder (d. 2003)
Dirk Andries Flentrop (1 May 1910 – 30 November 2003) was a Dutch organ builder. He built or restored many major organs in the United States and in Europe. He was noted for his 1977 restoration of two organs from the 17th and 18th centuries in the Mexico City Metropolitan Cathedral.