- Birth: 1547
- Death: 1621
- Other Names: 織田長益 (Oda Nagamasu), 源五 (Gengo), 源五郎 (Gengorô), 有楽斎 (Urakusai)
- Japanese: 織田有楽 (Oda Uraku)
His given name was Nagamasu; Uraku was a pseudonym (gô).
Following the death of Oda Nobunaga in the 1582 Honnôji Incident and decline of the Oda clan, Uraku entered the service of Toyotomi Hideyoshi. He fought under Tokugawa Ieyasu in the Battle of Sekigahara (1600), and just before the Osaka Campaign, retired to Kyoto. Following the Tokugawa victory at Osaka, Ieyasu asked Uraku to look into the fate of Hideyoshi's tea instruments, and to recover those he could.