Happiness is the key factor in part of human life. A growing number of studies had highlighted health benefits derived from happiness. Physical activity had gained increasing attention on its association with happiness. Psychologists are focusing more on physical activity as it relates to happiness. The purpose of this study is to identify the relationship between happiness and level of physical activity among students of FSR in UiTM Seremban. A total of 317 respondents had participated to complete the survey. The respondents were primarily female 55.2% (N = 175) and male 44.8% (N=142). The age of respondents is 18 -20 years old 23.3% (N=74), 24 to 26 years old 1.6% (N=5) and above than 26 years old 0.3% (N=1). The survey was getting its respond highest from students at the age of 21 to 23 years old 74.8% (N=237). There were 317 respondents who took part and the results of the respondent's physical activity level shows that majority 67.2% were in moderate intensity (N=213), 19.2% were in high physical activity intensity level (N=61) and 13.6% were in low level of physical activity (N=43). As for happiness level score the results illustrated that majority 92.4% were in moderate level of happiness (N= 293), followed by 6.6% respondents were in high level of happiness (N=21) and 0.9% were in low level of happiness (N=3). The result showed the relationship between physical activity and happiness among students of FSR shows significant positively strong relationship between both variables. Overall, the present result from this study will provide theory and understanding that sports improve people's enjoyment by decreasing tension and improving mood that in turn makes people happy.