Mutsuko Miki was a Japanese activist who advocated on behalf of pacifism, official compensation for comfort women, and improved Japan–North Korea relations. She was the widow of former Japanese Prime Minister Takeo Miki. Miki served as the wife of the Prime Minister of Japan, or First Lady, during her husband's two-year tenure from 1974 to 1976.

Takeo Miki was a Japanese politician who served as prime minister of Japan from 1974 until 1976.