Tadayo

Tadayo (written: 忠世) is a masculine Japanese given name. Notable people with the name include:


 * Tadayo Fukuo (福王 忠世), Japanese footballer
 * Ōkubo Tadayo (大久保 忠世), Japanese samurai and daimyō
 * Sakai Tadayo (酒井 忠世), Japanese daimyō