Tadakuni Matsudaira was a Japanese samurai and the 9th lord of the Matsudaira clan. He was born in 1751 and ruled the Kakegawa Domain in Shizuoka Prefecture during the late Edo period. His leadership was marked by efforts to improve the economy and infrastructure of his domain. Matsudaira was known for his interest in education and the arts, promoting cultural activities among his people. He passed away in 1829, leaving a legacy of governance that emphasized both economic development and cultural enrichment in his region.