Haruko Hatoyama was a Japanese educator of the Meiji, Taishō and Shōwa periods, and the matriarchal head of the prominent Japanese Hatoyama political family which has been called "Japan's Kennedy family." She was a co-founder of what is today Kyoritsu Women's University. Her husband was politician Kazuo Hatoyama.

Kazuo Hatoyama was the patriarchal head of the prominent Japanese Hatoyama political family which has been called "Japan's Kennedy family."