Johann van Beethoven (c. 1739 or 1740 – 18 December 1792) was a German musician, teacher, and singer who sang in the chapel of the Archbishop of Cologne, whose court was at Bonn. He is best known as the father of the celebrated composer Ludwig van Beethoven (1770–1827).
Johann van Beethoven was the son of Maria Josepha Ball (married 1733) and Lodewyck or Ludwig van Beethoven (1712-1773; not to be confused with Johann's famous son of the same name), who was probably born in or near the city of Mechelen, in Habsburg Netherlands (now in Flanders, Belgium), and had served as a musician in several communities in and around Mechelen before establishing himself in Bonn in 1733, where he served as a musician at the court of Prince-Archbishop-Elector of Cologne Clemens August of Bavaria, rising to the post of Kapellmeister in 1761. Johann van Beethoven also showed musical talent, and joined the court, primarily as a singer, in 1764. In addition to singing (his range, while usually described as that of a tenor, may have extended into alto and even higher registers), he played the violin and zither, and played and taught keyboard instruments of the day, including the harpsichord and the clavichord.
He probably met his future wife, Maria Magdalena Keverich (1746–1787), on a trip to Ehrenbreitstein. She was the daughter of the head chef to the Archbishop of Trier, whose court was there, and she had family connections in the court orchestra at Bonn. Already widowed at the age of nineteen, she and Johann were married on 12 November 1767 in the Catholic St. Remigius church, Bonn. They had seven children: