Karl Ollo

Karl Antonovich Ollo (Карл Антонович Олло) was a Russian figure skater and European silver medalist.

Ollo was a three-time champion of Russia in men's single skating (in 1910, 1911, and 1912) and the 1905 bronze medalist. At the international level, he was the 1911 European Championships silver medalist. He was coached by Nikolai Panin.

He lost his life at the front in the First World War.