In the sense that they’re different things that can overlap, sure. A disability is any condition (including mental or neurological disorders) that causes signif

In the sense that they’re different things that can overlap, sure. A disability is any condition (including mental or neurological disorders) that causes significant impairment in one or more activities of daily living. A mental illness is simply a condition that is best dealt with by psychotherapy or other psychiatric treatments. One can be significantly disabled by a mental illness or not.