M. P. Möller was a prominent American organ manufacturer founded in 1865 by M. P. Möller. The company specialized in building pipe organs for churches, concert halls, and other venues, becoming known for its craftsmanship and innovative designs. Over the years, M. P. Möller produced thousands of organs, contributing significantly to the American music landscape. The company was based in Hagerstown, Maryland, and it operated until the late 20th century. M. P. Möller organs are recognized for their rich sound and durability, and many are still in use today, cherished by musicians and audiences alike for their quality and historical significance.