In current study, the predictive role of perfectionism and trust in romantic relationships in the relation satisfaction of college students was investigated. The participants were 325 college students who have had a romantic relationship. Data was collected by Relationship Assessment Scale, Perfectionism in Romantic Relations Scale, Dyadic Trust Scale and a questionnaire. Data was analyzed by mean, Pearson Correlation and multiple lineer regression analysis. According to the results, there was positive relationship between relationship satisfaction, self-oriented perfectionism and dyadic trust; while there was negative relationship between relationship satisfaction and other oriented perfectionism. According to the results of multiple linear regression analysis; self-oriented perfectionism, other-oriented perfectionism and dyadic trust accounted for 33.3% of the change in the relationship satisfaction level. The increase in the self-oriented perfectionism and dyadic trust contribute to the increase in the level of relationship satisfaction; while the increase in other-oriented perfectionism leads to the decrease in the level of relationship satisfaction. The findings are discussed in the light of relevant literature and suggestions are presented.