Thomas Potts James (1803–1882) was an American botanist and bryologist.
[1] He made important contributions to the study of bryophytes (mosses, liverworts, and hornworts).
[2] He wrote the section on mosses and liverworts in William Darlington's Flora Cestrica (1853).
[2] James married Isabella Batchelder on 3 December 1851.
[3] Isabella went on to become the president of the Pennsylvania Freedmen's Commission.