PRINCE2 (an acronym for PRojects IN Controlled Environments, version 2) is a project management methodology. The methodology encompasses quality management, control and organization of a project with consistency and review to align with the objectives. PRINCE2 is a certification program for practitioners in the methodology who are accredited, qualified through training. PRINCE2 emphasis is on dividing the project into manageable and controllable stages. PRINCE2 is owned by AXELOS, a joint venture of the UK government and Capita with 49 and 51% stakes.

A prince is a male ruler, monarch, or member of a monarch's or former monarch's family. Prince is also a hereditary title in the nobility of some European states. The feminine equivalent is a princess. The English word derives, via the French word prince, from the Latin noun princeps, from primus (first) + capio (to seize), meaning "the chief, most distinguished, ruler, prince".