ObjectiveTo explore factors influencing surgical provider productivity and identify barriers against and opportunities to increase individual surgical productivity in Sierra Leone, in order to explain the observed increase in unmet surgical need from 92.2% to 92.7% and the decrease in surgical productivity to 1.7 surgical procedures per provider per week between 2012 and 2017.Design and methodsThis explanatory qualitative study consisted of in-depth interviews about factors influencing surgical productivity in Sierra Leone. Interviews were analysed with a thematic network analysis and used to develop a conceptual framework.Participants and setting21 surgical providers and hospital managers working in 12 public and private non-profit hospitals in all regions in Sierra Leone.ResultsSurgical providers in Sierra Leone experience a broad range of factors within and outside the health system that influence their productivity. The main barriers involve both patient and facility financial constraints, lack of equipment and supplies, weak regulation of providers and facilities and a small surgical workforce, which experiences a lack of recognition. Initiation of a Free Health Care Initiative for obstetric and paediatric care, collaborations with partners or non-governmental organisations, and increased training opportunities for highly motivated surgical providers are identified as opportunities to increase productivity.DiscussionBroader nationwide health system strengthening is required to facilitate an increase in surgical productivity and meet surgical needs in Sierra Leone. Development of a national strategy for surgery, obstetrics and anaesthesia, including methods to reduce financial barriers for patients, improve supply-mechanisms and expand training opportunities for new and established surgical providers can increase surgical capacity. Establishment of legal frameworks and appropriate remuneration are crucial for sustainability and retention of surgical health workers.