Acuity may refer to:
- Visual acuity, the behavioral ability to resolve fine image details
- Acuity Insurance, an insurance company with headquarters in Sheboygan, Wisconsin
- Acuity Solutions, a manufacturing consulting company with headquarters in Tigard, Oregon
- Acuity (Health Care), Level of Care (Full-Time / Quarter Time care per patient). To prioritize patient care based on the acuity of a patient’s presenting symptoms/conditions during triage.
- MV Acuity, a British coaster
- ACUITY, an acronym for "Acute Catheterization and Urgent Intervention Triage Strategy"