巴尔的摩/华盛顿瑟古德·马歇尔国际机场（英语：Baltimore/Washington International Thurgood Marshall Airport，IATA代码：BWI；ICAO代码：KBWI；FAA代码：BWI）是美国马里兰州巴尔的摩地区最主要的国际机场，也负责首都华盛顿哥伦比亚特区的部分航线，以巴尔的摩出身的美国历史上首位非裔最高法院**瑟古德·马歇尔的名字命名。

本机场是巴尔的摩－华盛顿都会区最繁忙的机场，也是西南航空公司的重点机场。2010年本机场被评为同等规模机场中服务品质最佳的机场。

Baltimore/Washington International Thurgood Marshall Airport (IATA: BWI, ICAO: KBWI, FAALID: BWI) is, as of calendar year 2014, the largest, by passenger count, of three major airports serving the Baltimore–Washington Metropolitan Area in the United States, the other two being Ronald Reagan Washington National Airport and Washington Dulles International Airport. It is commonly referred to as BWI or BWI Marshall. Located next to the CDP Linthicum in northern unincorporated Anne Arundel County, Maryland, the airport is about 10 miles (16 km) south of Baltimore and 32 miles (51 km) northeast of Washington, D.C. The airport is named after Thurgood Marshall, a Baltimore native who was the first African American to serve on the Supreme Court of the United States.