Viktor Ryashko (; born 27 November 1992) is a Ukrainian professional footballer who plays as a midfielder for Hungarian club Cegléd.
Ryashko spent some years in the Sportive Youth system in Uzhhorod. He made his debut in the Ukrainian Premier League in a match against FC Vorskla Poltava entraining in the second half-time on 26 May 2013.
He is the son of Ukrainian football manager Viktor Ryashko and older brother of the footballer Mykhaylo Ryashko.