This research identifies factors influencing sexual behavior among rural Thai youth using secondary data from the project titled “Determinants of Sexual Behavior that Influence the Risk of Pregnancy and Disease among Rural Thai Young Adults”. The samples used in this analysis included 443 and 517 never married male and female youth respectively. Males who ever had sex with sex workers were excluded from the analysis. This research aims at understanding youths’ sexual behavior. Ordered Logistic Regression Analysis was used to understand the influence of demographic and other factors on youth sexual behavior. A comparison of the sex differences in sexual attitudes and behavior shows a clear double standard between males and females. Female respondents adhere closely to traditional attitudes in Thai society about sexual behavior. For example, while more than half of male respondents agreed that it was okay to have premarital sex if a couple was in love, the percentage of female respondents expressing agreement was less than 20 percent. Similarly, although almost 50 percent of males stated that it was the man who should initiate sexual activity only 3 percent of women felt that a woman should initiate sexual activity Regarding sexual behavior, almost two-thirds of female respondents, have never engaged in sexual behavior with their boyfriend compared to one-third of male respondents. Results from Ordered Logistic Regression Analysis demonstrated the influence of risk factors on sexual behavior. They were age, sex, working status, relationship with opposite sex, peer influences and attitude towards sexual relationship. The odds of females being involved in sexual behavior were 7.4 times less than that of males.