Nier: Automata Ver1.1a is a Japanese anime television series directed by Ryōji Masuyama, co-written by Masuyama and Yoko Taro, and composed by music studio Monaca. Based on the 2017 action role-playing game Nier: Automata developed by PlatinumGames and published by Square Enix, the anime is produced by A-1 Pictures. Set in the far future during a proxy war between alien-created Machine Lifeforms and human-crafted androids, the story primarily focuses on 2B and 9S, soldiers for the elite YoRHa combat force who become involved with the latest conflict against the Machine Lifeforms.

Yoko, who directed and co-wrote the original game, collaborated with Masuyama on adapting the story into a form that would work in an anime. Monaca, who worked on the game's music, returned to both arrange earlier pieces and create original music. The opening and ending themes were provided respectively by Aimer and Amazarashi. The game's original Japanese and English cast reprised their roles. The series was announced in a 5th anniversary livestream, and was broadcast from January to July 2023. Its broadcast had been twice delayed due to the COVID-19 pandemic impacting production. A second cours aired from July to September 2024.