Aim: To determine outpatients' satisfaction with physiotherapy services in tertiary hospitals in Lagos State, Nigeria. Method: This cross-sectional study utilized a simple random sampling method to recruit 284 participants. Participants responded to a 2-part structured questionnaire with 33-items on a 5-point Likert-type scale. Participants were asked questions about their satisfaction with physiotherapy services, staff attitudes, and the accessibility of outpatient physiotherapy clinics. Data were analyzed using descriptive analysis and w 2. Results: About 28.8% of the participants were satisfied or very satisfied with the location of the outpatient physiotherapy clinics. The majority of the participants were satisfied or very satisfied with these physiotherapy services in maintaining privacy (86.2%), scheduling convenient clinic appointments (78.2%), prompt scheduling of the first physiotherapy clinic appointment (74.6%) and subsequent visits (78.9%), and providing a calm/ relaxing atmosphere (90.1%). While 22.5% of the participants were satisfied or very satisfied with the waiting time in these physiotherapy clinics, 86.3% and 97.9% were satisfied or very satisfied with staff attitudes and the cost of the therapy, respectively. Almost all (97.9%) the participants reported being satisfied or very satisfied with their overall experience in the physiotherapy clinics. While there was an association between marital and educational status with overall satisfaction scores, age and gender showed no association. Conclusion: Our findings suggest that patients attending the outpatient physiotherapy clinics in tertiary hospitals in Lagos State, Nigeria, were satisfied or very satisfied with the domain that measured overall satisfaction. Strategies to reduce the waiting time in these physiotherapy clinics and to enhance physical accessibility of the physiotherapy clinics are encouraged.