Joseph Heinrich von Schomacker (Russian: Иосиф Андреевич Шомакер, romanized: Iosif Andreyevich Shomaker; born 31 May 1859 in Dünamünde/Daugavgrīva near Riga, Russian Empire – 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.

[3] The owner of the yacht was Aleksandr Vyshnegradsky, the father of the Russian composer Ivan Vyshnegradsky.

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