Andriy (Andrei) Medvedev (Ukrainian: Андрій Медведєв, born 31 August 1974 in Kiev), is a former professional tennis player from Ukraine. Andriy is the Ukrainian language spelling of his first name, while Andrei is the Russian language spelling of his first name, with both regularly used. Medvedev made a splash on the international tennis scene when, as a 17-year-old, he won titles in Genoa and Stuttgart. His most successful tournament was the Hamburg Masters (formerly the German Open), which he won three times (1994, 1995 and 1997). He reached a career-high singles ranking of World No. 4.