Eugenia Tanaka (born 9 March 1987 in Kisaran, North Sumatra, Indonesia) is an Indonesian-born Australian badminton player.
At the age of fourteen, Tanaka moved to Melbourne, Australia, where she started playing badminton, and obtained a dual citizenship.
Tanaka is also a member of Badminton Academy of Victoria, and is coached and trained by Ricky Yu.Tanaka qualified for the women's doubles at the 2008 Summer Olympics in Beijing, by placing fifteenth and receiving a continental spot for Oceania from the Badminton World Federation's ranking list.
Tanaka and her partner Tania Luiz lost the preliminary round match to Japanese pair Miyuki Maeda and Satoko Suetsuna, with a score of 4–21 and 8–21.