- Birth: 1586
- Death: 1632
- Japanese: 浅野 長晟 (Asano Nagaakira)
- Distinction: Tokugawa retainer
- Title: Tajima no kami
- Sons: Asano Mutsuakira and Asano Nagaharu
Nagaakira succeeded his elder brother Yukinaga and resided at Kôfu in Kai province. On the eve of the Osaka Castle conflict, Toyotomi retainers attempted to convince Nagaakira to lend his strength to their cause. Nagaakira not only remained loyal to the Tokugawa but reportedly took 44 heads in the sieges of Osaka Castle (1614, 1615). He was installed at Hiroshima in Aki province, worth some 426,000 (1619), and had earlier married a daughter of Tokugawa Ieyasu (1616).
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005