Nagamasa AZAI (浅井 長政, formerly written as 淺井 長政) was a busho (Japanese military commander during the Sengoku Period [period of warring states] in Japan, at the end of the Muromachi Period) and warring lord in Omi Province.
浅井長政（あざいながまさ、旧字体表記：淺井長政）は、戦国時代(日本)（室町時代末期）の武将で、近江国の戦国大名。