Viktor Ahn (Russian: Виктор Ан; born November 23, 1985), also known as Ahn Hyun-Soo (Korean: 안현수) is a Russian short track speed skating athlete of South Korean descent. After competing for South Korea (the country where he was born, where he grew up, where he always trained, and that paid for his training) since childhood, in 2011 he became a Russian citizen and now races for the Russian team.