Which British university has the largest number of enrolled students?

The Open University (OU) is a public research university, and the biggest university in the UK for undergraduate education. The majority of the OU's undergraduate students are based in the United Kingdom and principally study off-campus; many of its courses (both undergraduate and postgraduate) can also be studied anywhere in the world.

With more than 174,000 students enrolled, including around 31% of new undergraduates aged under 25 and more than 7,400 overseas students, it is the largest academic institution in the United Kingdom (and one of the largest in Europe) by student number and qualifies as one of the world's largest universities. Since it was founded, more than 2 million students have studied its courses.