The present study examines the role of commitment in dating relationships. Using 354 university students, the data show that commitment is positively related to premarital sexual behavior, especially for highly experienced females. The development of dating relations is significantly related to the level of commitment for both males and females and the differences between groups are more obvious for female students. Commitment increases as duration of dating relations increases. While females generally show higher commitment at more advanced dating relationships than males, males indicate higher commitment at beginning stages than females. The implications of these findings are dicussed.