Aleksei or Aleksey Kuznetsov may refer to:

• Aleksey Kuznetsov (footballer) (born 1996), Russian footballer
• Aleksey Kuznetsov (guitarist) (born 1941), Russian guitarist
• Aleksey Kuznetsov (skier) (1929–2003), Russian skier
• Aleksey Kuznetsov (swimmer) (born 1968), Russian swimmer
• Alexey Kuznetsov (1905–1950), Soviet statesman
• Alexey Kuznetsov (field athlete) (born 1981), Paralympian athlete from Russia
• Alexey Yakovlevich Kuznetsov (1910–1969), Soviet engineer
• Aleksey Igorevich Kuznetsov (born 1983), Kazakhstani ice hockey goaltender