It’s an MIT. Since we typically pronounce the abbreviation MIT as individual letters, and the letter M begins with a vowel sound, we use the article "an".

It’s an MIT (Massachusetts Institute of Technology), so we say "an MIT professor", "an MIT student", "an MIT graduate", etc. Since we typically pronounce the abbreviation MIT as individual letters, and the letter M begins with a vowel sound, we use the article "an".

As an MIT student, you will learn, live, and work in a diverse community.

Remember, the rule for using "a" or "an" is based on the initial sound of the word that follows, not the spelling.

Working with students is one of my favorite things about being an MIT professor.

And we say an M (not "a M").

An MIT research team is using supercomputers to develop a drug to treat the disease.

Follow the same strategy with other acronyms that begin with the consonant M and are pronounced as separate letters; for example, we say an MBA, an MD, or an MRT (Mass Rapid Transit).