贝圣路易斯（Bay St. Louis）位于美国密西西比州南部，是汉考克县的县治。

根据2000年美国人口普查，共有8,209人，其中白人占80.23%、非裔美国人占16.59%、亚裔美国人占1.11%。

Bay Saint Louis is a city in and the county seat of Hancock County, Mississippi. It is part of the Gulfport–Biloxi, Mississippi Metropolitan Statistical Area. As of the 2000 census, the city had a total population of 8,209. The city is recovering population lost due to Hurricane Katrina, and the Census Bureau's 2011 population estimate was 9,408. Like several other upper Gulf Coast cities, Bay Saint Louis was devastated by Hurricane Katrina in August 2005 (see details below).