Setsuko, Princess Chichibu (????????, Yasuhito Shinnohi Setsuko, born Setsuko Matsudaira (????, Matsudaira Setsuko); 9 September 1909 – 25 August 1995) was a member of the Japanese Imperial Family.
The Princess was the wife of Prince Chichibu, the second son of Emperor Taisho and Empress Teimei.
She was, therefore, a sister-in-law of Emperor Showa and an aunt of the emperor Akihito.