The present investigation examined the relation of the Five Factor Model of personality as measured by the NEO Personality Inventory-Revised to the seven-factor model of temperament and character as tapped by the Temperament and Character Inventory by testing a sample of 344 undergraduate students. Correlations and regression analyses suggest there is substantial overlap between the NEO-Personality Inventory-Revised domains and Temperament and Character Inventory dimensions as reflected in multiple correlations ranging from .54 to .80 for the latter when used as predictors of NEO Personality Inventory-Revised domains and .46 to .78 for the former domains when used as predictors of Temperament and Character Inventory dimension scores. Information for constructing the regression equations to allow for the prediction of personality constructs for one model from scores obtained on the other are provided.