The Uyghur Latin alphabet (Uyghur Latin Yëziqi or ULY) is an auxiliary alphabet for the Uyghur language based on the Latin script. Uyghur is primarily written in a Arabic alphabet and sometimes in a Cyrillic alphabet.

The ULY project was finalized at Xinjiang University, Ürümqi, Xinjiang Uyghur Autonomous Region (XUAR), People's Republic of China in July 2001, at the fifth conference of a series held there for that purpose that started in November 2000. In January 2008, the ULY project was amended and identified by Xinjiang Uyghur Autonomous Regional Working Committee of Minorities' Language and Writing.

The letters in the ULY are, in order:

The creators of ULY strongly emphasized that “the proposed alphabet should not replace [the Persian-Arab Uyghur alphabet] nor should its introduction represent a new reform of the writing system. It is to be used solely in computer-related fields as an ancillary writing system”.

ULY had a heavy public relations presence on both the Internet and official Xinjiang Uyghur Autonomous Region media but despite official efforts to play down the sense of a massive reform, ULY has acquired that connotation and the public seems wary of it. The importance of having one-to-one correspondence between both Latin and Arabic is noteworthy.

Latin script, or Roman script, is a writing system based on the letters of the classical Latin alphabet and extended forms thereof. It is used as the standard method of writing most Western and Central European languages, as well as many languages from other parts of the world. Latin script is the basis for the largest number of alphabets of any writing system, and is also the basis of the International Phonetic Alphabet. The 26 most widespread letters are the letters contained in the ISO basic Latin alphabet.

The Latin alphabet spread, along with the Latin language, from the Italian Peninsula to the lands surrounding the Mediterranean Sea with the expansion of the Roman Empire. The eastern half of the Empire, including Greece, Turkey, the Levant, and Egypt, continued to use Greek as a lingua franca, but Latin was widely spoken in the western half, and as the western Romance languages evolved out of Latin, they continued to use and adapt the Latin alphabet.

With the spread of Western Christianity during the Middle Ages, the Latin alphabet was gradually adopted by the peoples of northern Europe who spoke Celtic languages (displacing the Ogham alphabet) or Germanic languages (displacing earlier Runic alphabets) or Baltic languages, as well as by the speakers of several Uralic languages, most notably Hungarian, Finnish and Estonian. The script also came into use for writing the West Slavic languages and several South Slavic languages, as the people who spoke them adopted Roman Catholicism. The speakers of East Slavic languages generally adopted Cyrillic along with Orthodox Christianity. The Serbian language uses both scripts, with Cyrillic predominating in official communication and Latin elsewhere.^{[citation needed]}