Oda Nagamasu (織田 長益; 1547 – January 24, 1622) was a Japanese daimyō and a brother of Oda Nobunaga who lived from the late Sengoku period through the early Edo period. Also known as Yūraku (有楽) or Urakusai (有楽斎), the Tokyo neighborhood Yūrakuchō is named for him. Nagamasu converted to Christianity in 1588 and took the baptismal name of John.