The University of San Andres Master in Finance program is one of the first Argentinian MSF programs that I have found. It is a CFA Partner Program which is the gold standard for graduate finance programs. There are four tracks students can specialize in: quantitative, banking, corporate finance and risk management.
The site is all in Spanish, but I translated it with the help of Google. There isn’t too much information about the program on the website, but if you want to go to school in Buenos Aires, then check this out.
Here is a link to the University of San Andres Master in Finance program