Abstract : The trend of using the internet became popular in the last few years among teenagers especially university students and result in academic decrements. Young demonstrated that the hazardous use of the internet can lead to major social academic and occupational problems. To find out the association between internet addiction the academic performance among undergraduate DPT students of Lahore. Young’s internet addiction test is a gold standard tool for measuring the level of internet addiction. The graded Point Average (GPA) Scale is used for assessing the academic grades both scales have good validity and reliability. Data were analyzed by using SPSS v21. A Chi-square test was used to find out the association between internet addiction and academic performance. P-value ≤ .05 was taken statistically significant. P-value of 0.008, calculated through the chi-square test shows that association is significant because a lower p-value showed that the Null hypothesis is rejected and the alternative hypothesis is accepted represents that there is a strong positive association between internet addiction and academic performance. Our study concludes that Academic performance is found to be associated with internet addiction and the trend of decreased academic performance is found with increased internet addiction.