This thesis aimed to determine the relationship between service quality and user satisfaction at Asociación Benéfica PRISMA – Iquitos site, in 2024. The research was basic, using a quantitative approach, with a descriptive correlational study level, a non-experimental design, and a cross-sectional approach. The sample consisted of 161 users, selected through non probabilistic convenience sampling. A questionnaire was administered using the Likert ordinal scale, using five categories to measure service quality, divided into the dimensions of tangibility, confidence, responsiveness, safety, and empathy, and user satisfaction, through the dimensions of expectations, perceived quality, general satisfaction index, complaints, and loyalty. The descriptive results showed a generalized positive perception of 100% regarding service quality and 98.14% in user satisfaction. In inferential stati...