Portability

Portability may refer to:
 * Portability (social security), the portability of social security benefits
 * Porting, the ability of a computer program to be ported from one system to another in software engineering
 * Software portability, the portability of a piece of software to alternative platforms
 * Telephone number portability (disambiguation) keeping one telephone number while switching one's account to another telephony provider
 * Portlet, user interface software components that are managed and displayed in a web portal
 * Portability of the estate tax exclusion amount regarding Estate tax in the United States