Sakai Tadashige

{{about|the last Tairō of the Tokugawa Shogunate|the 1st Daimyo of the Tsuruga domain|Tsuruga_Domain#Sakai_Tadashige}}

{{Infobox officeholder

| name= Sakai Tadashige

| order=Lord of Himeji

| image= Sakai_Tadasige.jpg

| birth_date={{birth date|1827|7|12|mf=y}}

| death_date={{death date|1895|11|30|mf=y}}

| nationality=Japanese

| spouse=

}}

{{nihongo|Sakai Tadashige|酒井忠績||extra=12 July 1827 – 30 November 1895}} was the 8th Japanese Daimyō of the Sakai clan, Himeji Domain and the last Tairō{{Cite web|date=2020|title=Himeji Castle Chronology|url=https://www.hyogo-c.ed.jp/~rekihaku-bo/historystation/rekihaku-db/castle/himeji-chronology/index_en.html|access-date=27 July 2020|website=Hyogo Prefectural Museum of History}} (Chief Minister) of the Tokugawa Shogunate.

He was appointed Tairō on 26 February 1865 after the assassination of Ii Naosuke, until his dismissal on 29 December 1865. A staunch supporter of the reforming of the Bakufu government and punitive actions towards the Chōshū Domain rebels, he tried to accelerate the Westernization of the Japanese military and purged Imperialists during his short term.{{Cite book|last=Totman|first=Conrad D.|title=The Collapse of the Tokugawa Bakufu, 1862-1868|publisher=Univ of Hawaii Pr|year=1990|isbn=978-0824806149|pages=151}}