Southwest

A compass rose with Southwest highlighted.

Southwest or south west is the ordinal direction halfway between south and west, the opposite of northeast. Southwest or south west may also refer to:

• The Southwestern United States
• Southwest China
• Southwest High School (Minneapolis, Minnesota)
• South West (Western Australia)
• Southwest Airlines, a domestic United States airline
• South West Trains, a UK train operating company
• The South west Biosphere Reserve in Australia; see List of Biosphere Reserves in Australia
• Southwestern Company, an American direct-selling book publisher
• Southwest Conference, the NCAA college football conference
• Southwest Golf Classic, a former PGA Tour golf event
• South West England, principally the counties of Dorset, Somerset, Devon and Cornwall
• Southwestern University School of Law, one of the oldest law schools in California
• Southwestern University, a private university located in Georgetown, Texas
• Southwestern Baptist Theological Seminary, a Baptist school in Fort Worth, Texas
• UT Southwestern Medical School, a prestigious medical school located in Dallas, Texas
• Southwestern Art is a style of art prevalent in the desert Southwest of the United States, particularly centered in Santa Fe, New Mexico
• Southwestern blot
• Southwestern High School, Piasa, Illinois
• Southwest Province, Cameroon
• Washington, D.C. (southwest)