Tokyo 20th District (東京都第20区, Tokyo-to dai-niju-ku) is an electoral district of the Japanese House of Representatives.

The district was created in 1994 as part of the move to single-member districts that same year, and the district is currently represented by the Liberal Democratic Party's Seiji Kihara.

As of 13 January 2023, the areas covered by this district area as follows:[2][3] Since its creation in 1994, the borders of this district have so far not been changed.

‡ - Also ran in the Tokyo PR district ‡‡ - Also ran and won in the Tokyo PR district