Background: Obesity presents a significant health challenge in Malaysia. Despite bariatric surgery's proven efficacy in treating morbid obesity, its low uptake hints at possible issues with public perception and acceptance. Aim: This study aims to evaluate the non-patients’ knowledge and attitudes towards bariatric surgery at a private hospital in Klang Valley, Malaysia. By gaining insights into the factors influencing public perception and acceptance of bariatric surgery, the study provides a foundation for informed interventions and strategies aimed at combating obesity and improving healthcare outcomes. Methods: The study employs a cross-sectional design using a survey targeted at non-patients from multiple demographic backgrounds in a private healthcare setting. Using non-probability convenience sampling, the responses of 169 respondents were collected and analyzed through SPSS. Results: Analysis showed that gender, religion, and BMI had significant association with knowledge towards bariatric while sociodemographic factors such as age, and education levels held no bearing. Female, Muslims, and those with normal BMI were more well-informed with regards to knowledge on bariatric. On the other hand, age, and BMI (P = 0.027) had significant association with attitude towards bariatric surgery. Young adults and those who are overweight tend to view bariatric surgery in a more favourable light (P = 0.435). Conclusion: The findings showed that public perception towards obesity and bariatric surgery in Klang Valley is still limited. Coordinated effort by healthcare practitioners, media, and government health agencies is required to improve public awareness. Keywords: Bariatric surgery, morbid obesity, public perception, knowledge, attitude