INSEAD, a contraction of "Institut Européen d'Administration des Affaires" (lit. 'European Institute of Business Administration') is a non-profit graduate-only business school that maintains campuses in Europe (Fontainebleau, France), Asia (Singapore), the Middle East (Abu Dhabi, United Arab Emirates), and North America (San Francisco). INSEAD offers a full-time Master of Business Administration, an executive MBA (EMBA), a Master of Finance, a PhD in management, a Master in Management, Business Foundations Post-Graduate degrees, and a variety of executive education programs.

Its MBA program, which is taught in English, is consistently ranked among the best in the world. The MBA has produced the second-most CEOs of the world’s 500 largest companies, only behind Harvard Business School and the sixth most billionaires.

Despite its relatively small size as a specialist, graduate-only university, INSEAD educated the second-most C-suite executives of listed companies in the world's 19 biggest economies, behind Harvard University. INSEAD is among the top 20 universities globally that produced the most of the world's ultra high-net-worth individuals.

The school has a strong reputation for entrepreneurship. In 2021, INSEAD was ranked fourth globally in PitchBook's ranking of MBA programs for founders and seventh for female founders. Approximately 700 alumni of the school founded more than 600 companies, which in total raised $23 billion. As of 2022, 15% of European unicorns were founded by an INSEAD alumnus, making the school the #1 unicorn producing university in the continent. As of 2022, Harvard University, Stanford University, and INSEAD are the only three universities ever to top Poets and Quants’s list of most-funded startup by MBA students. Notable companies founded by INSEAD alumni include Admiral Group, Wise, Nubank, MongoDB, Asklepios Kliniken, L’Occitane, Gorillas, Blablacar, Tudou, Ecovadis and Business Insider.

The school also educated four heads of state/governments, a few heads of legislature, dozens of cabinet members, and dozens of members of legislatures of countries around the world.

INSEAD admits no more than 12% of students of the same nationality and requires each student to speak two languages on entry and three languages by graduation.