Does Stony Brook University admit students directly into majors, or is admission mostly by the university as a whole?

At Stony Brook, it is both: students are admitted to the university, but some majors also have direct or restricted entry, so your intended major can matter. This is especially true for selective programs like Computer Science, Engineering, Business Management, Nursing, and certain health-related tracks. If you apply to one of those majors, you are usually being considered for both general admission and admission to that specific program.

For many less restricted majors, admission is mostly to Stony Brook first, and choosing or changing the major later is relatively straightforward. But for majors in the College of Engineering and Applied Sciences and a few other limited-capacity programs, getting into the university does not automatically mean you are admitted to that major.

So yes, your intended major can affect your admissions odds at Stony Brook if you are targeting a competitive or capacity-limited program. A student applying for English or Sociology is generally in a different situation from someone applying for Computer Science or Nursing, where entry standards are more selective and space is tighter.