Toshinao Nakagawa

is a former Japanese politician of the Liberal Democratic Party. The scion of an elite political family, Nakagawa resigned in April 2017 following reports of an extramarital affair.

Early career Nakagawa had previously worked as a journalist for TV Tokyo and as a secretary for his father, Hidenao Nakagawa. He was replaced by Masaki Ogushi following his resignation.

On December 26, 2025, it was reported that Nakagawa agreed to join Sanseito.

Affair and resignation

Nakagawa resigned following allegations printed in the Shukan Shincho that he had a mistress, who in turn broke up with him when she learned that he was in a relationship with another Liberal Democratic Party lawmaker, Megumi Maekawa. He submitted a notice of resignation from the LDP on April 21, and apologized for his conduct in a Facebook post.