Article One may refer to:
Law Article One of the United States Constitution, pertaining to the powers of Congress Article One, of the Constitution of India, pertaining to the federal nature of the republic; See Part I of the Constitution of India#Articles 1 & 2 Article 1 of the Constitution of the Fifth French Republic Article 1 of the European Convention on Human Rights Article One of the Constitution of Georgia (U.S. state)
Other uses Article One (band), a Canadian Christian rock band Article One (political party), an Italian political party Article One Partners, an online patent research formation
See also Article (disambiguation)