Utrecht University (UU; Dutch: Universiteit Utrecht, formerly Rijksuniversiteit Utrecht) is a public research university in Utrecht, Netherlands. Established 26 March 1636 (1636-03-26), it is one of the oldest universities in the Netherlands. In 2018, it had an enrollment of 31,801 students, and employed 7,191 faculty and staff. In 2018, 525 PhD degrees were awarded and 6,948 scientific articles were published. The 2018 budget of the university was €857 million.Utrecht University counts a number of distinguished scholars among its alumni and faculty, including 12 Nobel Prize laureates and 13 Spinoza Prize laureates. Utrecht University has been placed consistently in the top 100 universities in the world by prominent international ranking tables. The university is ranked the best university in the Netherlands by the Shanghai Ranking of World Universities 2019, ranking 13th in Europe and 49th in the world.The university's motto is "Sol Iustitiae Illustra Nos," which means "May the Sun of Righteousness Enlighten Us". This motto was gleaned from a literal Latin Bible translation of Malachi 4:2. Rutgers University, having historical connections with Utrecht University, uses a modified version of this motto.

Utrecht University is led by the University Board, consisting of prof. dr. Henk Kummeling (Rector Magnificus), prof. dr. Anton Pijpers (Chair) and prof. mr. Annetje Ottow (Vice Chair).

Close ties are harboured with other institutions internationally through its membership in the Coimbra Group (CG), the League of European Research Universities (LERU), the Utrecht Network and the European University Association (EUA).