Dosan was known by various names such as: Horenbo, Shogoro (Shokuro) MATSUNAMI, Masatoshi (Kankuro) NISHIMURA, Norihide (Shinkuro) NAGAI, Hidetatsu (Shinkuro) NAGAI, Toshimasa (Shinkuro) SAITO and Dosan; however, Norihide FUJIWARA (NAGAI), Toshimasa SAITO and Dosan are the only ones that appear in reliable historical materials.
道三の名として、法蓮房・松波庄五郎（庄九郎）・西村正利（勘九郎）・長井規秀（新九郎）・長井秀龍（新九郎）・斎藤利政（新九郎）・道三などが伝わるが、良質な史料に現れているのは、藤原（長井）規秀・斎藤利政・道三などのみである。