A York student number is a unique identifier used for all students and applicants in York University's Student Information System (SIS). This number is assigned by the University when an application is received.

A York student number is also the student's account number for financial transactions. When a student has fees to pay to their York student account, they may pay through their bank using their student number as the account number.

York Student Number is also a common York identification number. It is a unique identifier for students and it's used as a primary key within SIS.