北區 (; Hanja for Hangul: 북구 ) or 北区 (Japanese: ) may refer to:
Japan Kita-ku, Hamamatsu Kita-ku, Kobe Kita-ku, Kumamoto Kita-ku, Kyoto Kita-ku, Nagoya Kita-ku, Niigata Kita-ku, Osaka Kita-ku, Saitama Kita-ku, Sakai Kita-ku, Sapporo Kita, Tokyo
South Korea Buk-gu, Pohang Buk District, Ulsan Buk District, Busan Buk District, Daegu Buk District, Gwangju
Taiwan North District, Hsinchu North District, Taichung North District, Tainan
Hong Kong North District, Hong Kong
See also Northern District (disambiguation)