Geographia, Ltd. (fl. c 1910 - 1985) was a London based cartographic publishing firm. The company was founded by Alexander Gross (1879-1958), a Hungarian immigrant to the United Kingdom. Geographia is best known for its folding pocket maps and globes. Later in the early 20th century, Geographia expanded with offices in New York at 11 John Street and issued a large corpus of U.S. focused maps and city plans. In the later part of the 1980s the firm was bought out by Harper Collins and continues to produce maps under the Collins Bartholomew imprint.