This study explored the motivation of 29 Māori women requesting bariatric surgery for obesity through semi-structured interpersonal interviews informed by kaupapa Māori research methodologies. A majority of respondents reported that obesity-related disease and a better quality of life were the greatest sources of motivation. Whānau were key to achievement of preoperative milestones required for acceptance for bariatric surgery. Experiences of fat-shaming and yo-yo dieting were also factors in choosing to have surgery.