Newcomen may refer to:

People

* John Newcomen (c.1613–1630), English first white settler murdered by another white settler in Plymouth Colony, Massachusetts * Matthew Newcomen (c. 1610–1669), English nonconformist churchman *

Thomas Newcomen Thomas Newcomen (; February 1664 – 5 August 1729) was an English inventor, creator of the Newcomen atmospheric engine, atmospheric engine in 1712, Baptist lay preacher, preacher by calling and ironmonger by trade. He was born in Dart ...

(1663–1729), English ironmonger and inventor

Other uses

* Viscount Newcomen, of Mosstown in the County of Longford, a title in the Peerage of Ireland * Newcomen baronets, of Kenagh in the County of Longford, a title in the Baronetage of Ireland * Newcomen Society, a British learned society * Newcomen Society of the United States, an educational foundation * Newcomen atmospheric engine, a device to harness the power of steam to produce mechanical work {{disambiguation, surname English-language surnames