Aleksey Dionisiev (; born 21 April 1973) is a former Bulgarian-born Uzbekistani footballer who played as a defender.
Born in Bulgaria, Dionisiev was one of several foreign-born players to represent the Uzbekistan national football team in 2002 FIFA World Cup qualifying. He scored on his debut, a 7âÂÂ0 victory against Taiwan on 23 April 2001.
In 2001 Dionisiev received an Uzbek passport together with his compatriot Georgi Georgiev and made five appearances for the Uzbekistan national football team.
In 2007 Dionisiev married long-time girlfriend Zhenya Georgieva.