Kazuko Takatsukasa (?? ??, Takatsukasa Kazuko, 30 September 1929 – 26 May 1989), formerly Kazuko, Princess Taka (???????, Taka-no-miya Kazuko Naishinno), was the third daughter of Emperor Showa and Empress Kojun.
She was an elder sister to the former Emperor of Japan, Emperor Akihito.
She married Toshimichi Takatsukasa on 21 May 1950.
As a result, she gave up her imperial title and left the Japanese Imperial Family, as required by law.