Yoshiko Tanaka (田中好子, Tanaka Yoshiko, April 8, 1956 – April 21, 2011) was a Japanese actress. She was also famous as a member of the pop group Candies. While a member of Candies, Tanaka was known by the nickname "Sue" (スーちゃん, Sū-chan). Still at the height of its popularity, the group disbanded in 1978. Tanaka was also the sister-in-law of the well-known actress Masako Natsume.

Tanaka was born in Adachi, Tokyo. She had a role in Godzilla vs. Biollante, portraying Asuka Okouchi. She won the Best Actress Award at the 14th Hochi Film Award for Black Rain.

In 1991, she married businessman Kazuo Odate. She was diagnosed with breast cancer in 1992. In October 2010, her cancer returned. Tanaka died on April 21, 2011, at the age of 55.