1839 establishments in New York

Lincoln Hospital is a full service medical center and teaching hospital affiliated with Weill Cornell Medical College, in the South Bronx area of the Bronx, New York City. The medical center is municipally owned by NYC Health + Hospitals.

Dodd, Mead and Company was one of the pioneer publishing houses of the United States, based in New York City. Under several names, the firm operated from 1839 until 1990.

Roosevelt Hall (also known as the Richard DeZeng House or Lakota) is a historic home in Skaneateles, New York.

The Morning Telegraph (1839 – April 10, 1972) (sometimes referred to as the New York Morning Telegraph) was a New York City broadsheet newspaper owned by Moe Annenberg's Cecelia Corporation. It was first published as the Sunday Mercury from 1839 to 1897 and became The Morning Telegraph in December, 1897.

The Church of St. Peter is a parish church under the authority of the Roman Catholic Archdiocese of New York, located in Staten Island, New York City in the neighborhood of St. George. St. Peter's is the oldest of the 36 Roman Catholic parishes on Staten Island, having been established in 1839, before the second-oldest St. Mary's (1852) and the third-oldest St. Joseph's (1855).

The Oswego and Syracuse Railroad was formed on April 29, 1839, and the route was surveyed during the summer of that year. The Company was fully organized on March 25, 1847. The road was opened on May 14, 1848, and ran a total distance of 35.5 miles (57.1 km) from Syracuse, New York to Oswego, New York. In 1872 it passed under the management of the Delaware, Lackawanna and Western Railroad.

The West Street Foundry was an American steam engineering works notable for producing marine steam engines in the mid-19th century. Based in Brooklyn, New York, the company built at least 27 marine engines between 1845 and 1855, including engines for some of the fastest and finest steamboats of the era. The company also built and repaired steam engines and boilers of all types, as well as doing other metalwork. The company failed and was liquidated in 1855.

The National Bank of Commerce in New York was a national bank headquartered in New York City that merged into the Guaranty Trust Company of New York (which later became the Morgan Guaranty Trust Company, predecessor to J.P. Morgan & Co.).

Cedar Island Light is a lighthouse in Cedar Point County Park in East Hampton, New York. It overlooks Gardiners Bay.

The Sunday Mercury (1839–1896) (sometimes referred to as the New York Sunday Mercury) was a weekly Sunday newspaper published in New York City that grew to become the highest-circulation weekly newspaper (at least by its own claims) in the United States at its peak. It was known for publishing and popularizing the work of many notable 19th-century writers, including Charles Farrar Browne and Robert Henry Newell, and was the first Eastern paper to publish Mark Twain. It was also the first newspaper to provide regular coverage of baseball, and was popular for the extensive war correspondence from soldiers it published during the Civil War.