The Pullman Company, founded by George Pullman, was a manufacturer of railroad cars in the mid-to-late 19th century through the first half of the 20th century, during the boom of railroads in the United States. Through rapid late-19th century development of mass production and takeover of rivals, the company developed a virtual monopoly on production and ownership of sleeping cars.

During a severe economic downturn, the 1894 Pullman Strike by company workers proved to be a transformative moment in American labor history. At the company's peak in the early 20th century, its cars accommodated 26 million people a year, and it in effect operated "the largest hotel in the world". Its production workers initially lived in a planned worker community, known as a company town, named Pullman, Chicago.

Pullman developed the sleeping car, which carried his name into the 1980s. Pullman did not just manufacture the cars, it also operated them on most of the railroads in the United States, paying railroad companies to couple the cars to trains. In return, by the mid-20th century, these railroads would own Pullman outright. A labor union associated with the company, the Brotherhood of Sleeping Car Porters, founded and organized by A. Philip Randolph, was one of the most powerful African-American political entities of the 20th century. The company also built thousands of streetcars and trolley buses for use in cities. Post-WWII changes in automobile and airplane transport led to a steep decline in the company's fortunes. It collapsed in 1968, with a successor company continuing operations until 1981.

After spending the night sleeping in his seat on a train trip from Buffalo to Westfield, New York, George Pullman was inspired to design an improved passenger railcar which contained sleeper berths for all its passengers. During the day, the upper berth was folded up overhead similar to a present-day airliner's overhead luggage compartment. At night, the upper berth folded down and the 2 facing seats below it folded over to provide a relatively comfortable lower berth. Although this was a somewhat spartan accommodation by today's standards, it was a great improvement on the previous layout. Curtains provided privacy, and there were washrooms at each end of the car for men and women. The first Pullman coach was built at the Chicago & Alton shops in Bloomington, Illinois in the spring of 1859 with the permission of Chicago & Alton President Joel A. Matteson.

Pullman established his company in 1862 and built luxury sleeping cars which featured carpeting, draperies, upholstered chairs, libraries, card tables and an unparalleled level of customer service. Patented paper car wheels provided a quieter and smoother ride than conventional cast iron wheels from 1867 to 1915.

Once a household name due to their large market share, the Pullman Company is also known for the bitter Pullman Strike staged by their workers and union leaders in 1894. During an economic downturn, Pullman reduced hours and wages but not rents, precipitating the strike. Workers joined the American Railway Union, led by Eugene V. Debs.

After George Pullman's death in 1897, Robert Todd Lincoln, son of Abraham Lincoln, became the company's president.

In 1922, Haskell & Barker Car Manufacturing was acquired and in 1924 was merged with the other car manufacturing units of Pullman, and a new company was formed, Pullman Car & Manufacturing Company. In 1927, Pullman Company was created as a separate company and Pullman Incorporated was established as a holding company. In 1930, Pullman purchased the Standard Steel Car Company conglomerate which included Osgood Bradley, Standard Motor Truck, and Siems-Stembel. In 1934, it was merged with Pullman Car & Manufacturing Company to be known as Pullman-Standard Car Manufacturing Company.