汤马士·盖奇（英语：Thomas Gage，1719/1720年－1787年4月2日），是英国陆军的一名将军，在美国独立战争初期担任北美英军总司令及麻萨诸塞湾省总督。

盖奇生于1719年或1720年的英国，为家中庶子。盖奇的父亲为第一代盖奇子爵，亦名为汤马士·盖奇，其爵位在1754年身故后传予长子、第二代盖奇子爵威廉·贺尔·盖奇。

汤马士·盖奇在西敏公学毕业，于1741年从军，后来辗转透过捐纳及内部晋升，获提拔为陆军上尉，并以此军衔参与奥地利王位继承战争及镇压第二次詹姆士党人叛乱。1748年盖奇再用捐纳购得少校军衔，再于1751年调升中校，开始在英国结下政治网络。1753年盖奇与父亲曾经一同参选英国国会，却双双落败。

Thomas Gage (10 March 1718/19 – 2 April 1787) was a British general, best known for his many years of service in North America, including his role as military commander in the early days of the American Revolution.

Born to an aristocratic family in England, he entered military service, seeing action in the French and Indian War, where he served alongside his future opponent George Washington in the 1755 Battle of the Monongahela. After the fall of Montreal in 1760, he was named its military governor. During this time he did not distinguish himself militarily, but proved himself to be a competent administrator.