| Setsuko | |
|---|---|
| Princess Chichibu | |
 Princess Chichibu, c. 1928 | |
| Born | Setsuko Matsudaira (松平節子) 9 September 1909 Walton-on-Thames, England |
| Died | 25 August 1995 (aged 85) Tokyo, Japan |
| Burial | Toshimagaoka Imperial Cemetery, Bunkyo, Tokyo |
| Spouse | |
| House |
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| Father | Tsuneo Matsudaira |
| Mother | Nobuko Nabeshima |
Setsuko, Princess Chichibu (雍仁親王妃勢津子, Yasuhito Shinnōhi Setsuko, born Setsuko Matsudaira (松平節子, Matsudaira Setsuko); 9 September 1909 – 25 August 1995) was a member of the Japanese imperial family and the wife of Yasuhito, Prince Chichibu, the second son of Emperor Taishō and Empress Teimei. Setsuko was a sister-in-law of Emperor Shōwa and an aunt by marriage of Emperor Akihito.