Hokkaidō 3rd district (北海道[第]3区, Hokkai-dō [dai-]san-ku) is a single-member electoral district for the House of Representatives, the lower house of the National Diet of Japan. It is located in Sapporo, the capital of Hokkaido, and consists of the wards of Toyohira, and Kiyota and most of Shiroishi ward.
Before the introduction of the current first-past-the-post/proportional representation parallel electoral system for the House of Representatives in the 1990s, Sapporo city had been part of the SNTV six-member 1st district.