Lady Sanjō (三条の方 Sanjō no kata?) (1521 – August 29, 1570) was a Japanese woman of the Sengoku period. She was the wife of the famous daimyo, Takeda Shingen. She was the daughter of Sanjō Kinyori, a court noble of Kyoto; her sisters married Hosokawa Harumoto and Honganji Kennyo, respectively. Lady Sanjō married Shingen (then named Harunobu) at age 16. She gave birth to three sons and two daughters.