He re-took a seat in Yamaguchi Prefecture that had previously belonged to his grandfather Nobusuke Kishi and great-uncle Eisaku Sato, but that had been lost to the Democratic Party of Japan in the 2009 Japanese general election.

[7] Following the news of Kishi's appointment, a Chinese foreign ministry spokesman expressed hope that Japan would refrain from developing official ties with Taiwan.

[6] In October 2020, Kishi released a joint statement with Australian Minister of Defense Linda Reynolds that announced that Japan's Self Defense Forces would be enabled to protect Australian military assets, an act which was made legal in September 2015 through the "Peace and Security Preservation Legislation" passed under the Abe administration.

[8] Kishi and Reynolds also emphasized their opposition to "any destabilizing or coercive unilateral actions that could alter the status quo and increase tensions in the East China Sea," and some analysts have speculated this to be in reference to Chinese maritime activities around the Senkaku Islands.

[9] In a September 2021 interview with the Mainichi Shimbun, Kishi stated that Japan cannot stand aside when events occur in Taiwan due to being close neighbors and allies with shared universal values such as freedom and democracy.

[12] After the assassination of Shinzo Abe on 8 July 2022, Nobuo Kishi had to disclose that the relationship with the controversial Unification Church, also known as the "Moon Sect", extends to him.

[17] Like his brother Shinzō, Kishi is affiliated with the openly revisionist lobby Nippon Kaigi,[18] and a member of the following right-wing groups at the Diet: Kishi gave the following answers to the questionnaire submitted by Mainichi to parliamentarians in 2012:[19] In a March 2014 interview, he argued that nationalism was not on the rise in Japan, and that the Abe government would not change Japan's record of striving for peace as a member of international society.