ABSTRAK :rnrnThis study was carried out to investigate the factors that might be influencing internet addiction among adolescents of Mongolia and Malaysia. The major variables of the study were Family Factors, Social Factors and Internet Addiction. The participants were 264 adolescents [123 of whom were Malaysians and 141 of whom were Mongolians]. The study used structured online questionnaire. Internet addiction was evaluated using IAT (Internet Addiction Test) standardized instrument. Some factors had similar significant influence for both countries, but some showed opposite outcomes for Mongolian and Malaysia Internet users. Family background had no significant influence on Internet addiction in both countries. On thernother hand, online friends, stress and loneliness had positive influences on Internet addiction in both countries. Entertainment’s showed positive effect on Malaysian population but had no significant influence on Mongolian adolescent. There are similarities between the Internet users of the two countries; however, users demonstrate some significant differences between the two countries.