The Maggie L. Walker Governor's School for Government and International Studies (MLWGSGIS) is a public regional magnet high school in Richmond, Virginia.

One of the 18 Virginia Governor's Schools, it draws students from 14 jurisdictions: the counties of Chesterfield, Henrico, Hanover, Goochland, Powhatan, Prince George, Charles City, King and Queen, New Kent and Dinwiddie, and the cities of Richmond, Petersburg, Hopewell, and Colonial Heights. As the Governor's School for Government and International Studies, it shared space at Thomas Jefferson High School (TJHS) in the city's West End from its 1991 founding until summer 2001, when it moved into Maggie L. Walker High School after massive renovations. Every year since 2006 the school was recognized by Newsweek as one of the twenty-one most elite public schools in America. In 2013, Maggie Walker was ranked 14th in Newsweek's "Best Public High Schools" In 2014, Maggie Walker was ranked 10th in The Daily Beast's "Best High Schools" and 7th in their "25 Best High Schools in the South."