Which country is best for mechanical engineering?

US

The US has the most number of top mechanical engineering schools; 29 out of world’s top 100. This reason is alone to attract international students because you can aim to apply at multiple universities, all of which is one of the best in the field. Most of the MS courses at American universities are research-centric, which is exactly what students need. If you have a strong academic background, your application will be automatically considered for a scholarship by the university.

Most notable universities are as follow –

California Institute of Technology
Purdue University
University of Illinois at Urbana-Champaign
University of California, Los Angeles
Northwestern University
Cornell University
Princeton University
Pennsylvania State University
Texas A&M University
Germany
Germany is the second most popular place for pursuing MS in mechanical engineering. Although German universities offer an economically viable option of studies for international students, the reason why it takes the second place is a language barrier. Here are the best universities –

Rheinisch-Westfälische Technische Hochschule Aachen
Technische Universität München
Universität Stuttgart
Technische Universität Darmstadt
Karlsruhe Institute of Technology
Technische Universität Berlin
Canada
Out the top 100 universities for mechanical engineering, Canada is home to 13 out of which two are among the top 50. These universities are –

University of Toronto
McGill University
University of British Colombia
University of Waterloo
UK
The UK has 28 top mechanical engineering universities, the highest number apart from the US. The reason why the UK is ranked lower than other countries is because of the strict visa rules and little employment opportunity for international candidates.  

Cranfield University
University of Manchester
Loughborough University
University of Nottingham
University of Sheffield
University of Bath
University of Birmingham
University of Bristol
University of Leeds
University of Liverpool
University of Southampton