Sakamichi Series (Japanese: 坂道シリーズ) refers to the sister groups of the Japanese idol group Nogizaka46, an "official" rival group of AKB48. Based on AKB48's "idols you can meet" concepts, it currently consists of 3 groups. A first sister group, Keyakizaka46, created on August 21, 2015. On February 21, 2018, Yoshimotozaka46 was created as a second sister group. On February 11, 2019, former sub-group of Keyakizaka46, Hiragana Keyaki, became independent and changed its name to Hinatazaka46.
|Group name||Years active||Teams
|Nogizaka46 (乃木坂46)||2011–present||1st Gen, 2nd Gen, 3rd Gen||Tokyo, Japan|
|Keyakizaka46 (欅坂46)||2015–present||Kanji Keyakizaka46||Tokyo, Japan||First sister group|
|Yoshimotozaka46 (吉本坂46)||2018–present||–||Osaka, Japan||Second sister group, First in the Sakamichi series to be mixed with males and has no age limit to become recruits.|
|Hinatazaka46 (日向坂46)||2019–present||–||–||Formerly Hiragana Keyakizaka46, a sub-group of Keyakizaka46|
- "Toriizaka46's 1st generation members chosen, but changes its name to Keyakizaka46". tokyohive. 6Theory Media, LLC. Retrieved 2016-03-08.
- 乃木坂46、新グループ「欅坂（けやきざか）46」1期生メンバー決定 「鳥居坂46」からチーム名変更 (in Japanese). modelpress. Retrieved 2016-03-08.