Personal identity is the unique numerical identity of persons through time.
Personal identity may also refer to:
- an umbrella term used throughout the social sciences for an individual's comprehension of him or herself as a discrete, separate entity
- Personal identity number, as used by national authorities, or for identification for credit card usage and other situations
- Personally identifiable information, information that can be used to uniquely identify, contact, or locate a single person
- Right to personal identity, as recognised in international law
- Self-sovereign identity, an approach to digital identity that gives individuals control over the information they use to prove who they are