(; Hanja for Hangul: Gwan seo), (Simplified Chinese), or (Japanese Kansai), all literally meaning West of the Pass, may refer to the following:
Area west to Hangu Pass or Tong Pass in ancient China Guanxi, Hsinchu County, Taiwan Guanxi Town (关西镇), Longnan, Jiangxi province, China Kansai, a region in Japan Kwanso, a region in North Korea
See also Guanxi Kansai (disambiguation) 關東 (disambiguation)