M. V. Lomonosov Moscow State University (MSU; Russian: Московский государственный университет имени М. В. Ломоносова, romanized: Moskovskiy gosudarstvennyy universitet imeni M. V. Lomonosova) is a public research university in Moscow, Russia, and the most prestigious university in the country.

The university includes 15 research institutes, 43 faculties, more than 300 departments, and six branches (including five foreign ones in the Commonwealth of Independent States countries). Alumni of the university include past leaders of the Soviet Union and other governments. As of 2019, 13 Nobel laureates, six Fields Medal winners, and one Turing Award winner had been affiliated with the university.

The university was ranked 18th by The Three University Missions Ranking in 2022, and 76th by the QS World University Rankings in 2022, #293 in the world by the global Times Higher World University Rankings, and #326 by U.S. News & World Report in 2022. It was the highest-ranking Russian educational institution by QS in 2020, and according to the Nature Index in 2019 the highest ranked Russian university for research output. Moscow State University is generally accepted as the leading higher educational institution in the former Soviet Union.[8]