Joseph Heinrich von Schomacker (; born 31 May 1859 in Dünamünde/Daugavgrëva near Riga, Russian Empire â 17 July 1931 in Kötzschenbroda, German Empire) was a Baltic German physician, sailor and Olympic medalist. Schomacker at the 1912 Olympic Games with the Russian Empire team Gallia II won a bronze medal in sailing in the 10 Metre class. The owner of the yacht was Aleksandr Vyshnegradsky, the father of the Russian composer Ivan Vyshnegradsky.