Student affairs, student support, or student services is the department or division of services and support for student success at institutions of higher education to enhance student growth and development. People who work in this field are known as student affairs educators, student affairs practitioners, or student affairs professionals. These student affairs practitioners work to provide services and support for students and drive student learning outside of the classroom at institutions of higher education.

The size and organization of a student affairs division or department may vary based on the size, type, and location of an institution. The title of the senior student affairs and services officer also varies widely; traditionally in the United States, this position has been known as the "dean of students", as distinguished from the academic dean or the deans of individual schools within a university. In some institutions today, student affairs departments are led by a vice president or vice chancellor who then reports directly to the president/chancellor of the institution. In other cases the head of student affairs may report to the provost or academic dean.