Trait may refer to: Phenotypic trait in biology, which involve genes and characteristics of organisms Genotypic trait, sometimes but not always presenting as a phenotypic trait Trait (computer programming), a model for structuring object-oriented programs (a template class in the C++ programming language) Personality, traits that predict an individual's behavior. Trait theory in psychology Entertainment Trait (album), the first and only EP by the industrial rock/metal band Pailhead Traits (Joe Morris album) Trait (role-playing games), a type of role-playing statistic