On, on, or ON may refer to:
One Thousand and One Nights (Arabic: أَلْف لَيْلَة وَلَيْلَة, romanized: ʾAlf layla wa-layla) is a collection of Middle Eastern folk tales compiled in Arabic during the Islamic Golden Age.
Ontario ( (listen); French pronunciation: [ɔ̃taʁjo]) is one of the 13 provinces and territories of Canada and is located in east-central Canada.
One World Trade Center (also known as One WTC, 1 World Trade Center, 1 WTC, or Freedom Tower) is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City.
Online advertising, also called online marketing or Internet advertising or web advertising, is a form of marketing and advertising which uses the Internet to deliver promotional marketing messages to consumers.
China's one-child policy was part of a birth planning program designed to control the size of its population.