RESUMEN
INTRODUCTION@#The social environment of adolescents plays a significant role in their psychological wellbeing, which in turn contributes to their personal development as individuals. This research aimed to determine the correlation between internet addiction and the psychological well-being of high school students in private schools in Metro Manila for the school year 2020-2021.@*METHODS@#High school students from Grades 7-12 in private schools in Metro Manila, with at least one account in any social media platform participated. The Internet Addiction Test and The Flourishing Scale were used to determine internet addiction and psychological well-being, respectively. Spearman’s rank-order correlation was used to determine the magnitude of correlation between internet addiction and psychological well-being.@*RESULTS@#The prevalence of internet addiction was 46.1% among 128 respondents. The mean psychological well-being score of the participants was 45.9 ± 7.84. There was weak statistically significant negative correlation between psychological well-being and internet addiction (rs(126) = -0.346, p < 0.001).@*CONCLUSION@#Students with higher scores of internet addiction were more likely to have lower scores in psychological well-being. There was weak statistically significant negative correlation between psychological well-being and internet addiction.