Vânia Yukie Ishii (???·???·???, born August 19, 1973 in São Paulo) is a female judoka from Brazil, daughter of Chiaki Ishii who won the bronze medal at the 1972 Summer Olympics in Munich.Vânia Yukie Ishii won the gold medal in the half middleweight division (– 63 kg) at the 1999 Pan American Games.
She represented her native country at two consecutive Summer Olympics, starting in 2000 in Sydney, Australia.