Introduction: Non-communicable diseases are the leading causes of disease burden worldwide. According to World Health Organization estimates, NCDs are responsible for 74% of all deaths globally, with around 77% of premature deaths from NCDs occurring in low- and middle-income countries. This study aims to assess the lifestyle related health risk factors of non-communicable diseases among adults in Nepal, in which two- third of annual deaths are attributable to non-communicable diseases. Methods: A cross sectional study was conducted among adults in Morang district, Nepal. Data collection involved the assessment of the risk factors of obesity, smoking, alcohol consumption, inadequate fruits and vegetable consumption, inadequate physical activity, are raising blood pressure. Ethnical approval was obtained. Results: Two hundred forty participants participated in the study, of which the most prevalent risk factor was obesity (58.3%). Out of total participants, 41.6% had consumed tobacco, 31.2% had consumed alcohol, 41.6% had consumed inadequate fruits and vegetables, 30.4% had inadequate physical activity, and 29.1% had raised blood pressure. Similarly, education is statistically associated with lifestyle risk factors. Male participants of age above 40 years were found to be statistically associated with current tobacco and alcohol consumption. Conclusion: Health related risk factors are causes of non-communicable disease. Most of the participants had two or more risk factors for non-communicable disease. Education is significantly associated with all the risk factors among the participants.