大白舰队（英语：Great White Fleet）是美国海军历史上一支作战舰队的常用昵称。1907年12月16日至1909年2月22日，大白舰队依照总统西奥多·罗斯福的命令，完成了环球航行。

大白舰队分为两个中队，由16艘战列舰以及各种护航舰组成。罗斯福希望通过这个舰队来展示美国快速增长的军事实力和美国蓝水海军的实力。在加强国际条约执行力和保护海外控股的愿望下，美国国会划拨了资金以创建美国的海上力量。这支海军部队一开始仅拥有90小型船舶，其中超过三分之一由木船组成，但它迅速成长为包括了新的现代化钢铁战斗船只的舰队。这些船的船体全都被涂成了白色，因此获得了“大白舰队”的称号。

The Great White Fleet was the popular nickname for the United States Navy battle fleet that completed a circumnavigation of the globe from December 16, 1907, to February 22, 1909, by order of United States President Theodore Roosevelt.

It consisted of 16 battleships divided into two squadrons, along with various escorts. Roosevelt sought to demonstrate growing American military power and blue-water navy capability. Hoping to enforce treaties and protect overseas holdings, the United States Congress appropriated funds to build American sea power. Beginning with just 90 small ships, over one-third of them wooden, the navy quickly grew to include new modern steel fighting vessels. The hulls of these ships were painted a stark white, giving the armada the nickname "Great White Fleet".