Cass Business School is located in the City of London, UK and is part of the City University, London. It was formerly called the City University Business School. The School provides Specialist Masters Programmes, MBA (Master of Business Administration) and Executive Programmes. It also offers a range of undergraduate courses.

The School is housed in a newly built state-of-the-art building located in the City of London, the world's foremost financial centre. It is among the best business schools in Europe and was recently ranked in the Financial Times Survey of European Business Schools 2004 (for Postgraduate programmes) as 2nd in UK (after London Business School) and as 6th in Europe.

The Dean of the School is Professor David Currie (Lord Currie of Marylebone).