Fishing is a vital and productive activity worldwide, contributing significantly to food security and food production. Sinaloa, Mexico, is a fishing city with a diverse range of crustacean and fish species that inhabit its coastal waters. However, little is known about its parasitofauna, a crucial aspect for preventing zoonotic diseases. The objective of this study was to compile a list of fish parasitofauna from two coastal areas in southern Sinaloa during two years of student service in the Bachelor's degree programs in Fisheries and Aquatic Sciences, Facultad de Ciencias del Mar (FACIMAR), Universidad Autónoma de Sinaloa, Mazatlán, México. During the 2022-2024 period, 290 fish were collected from two different regions of southern Sinaloa: Mazatlán and Walamo, as part of academic and community service activities. The fish species collected were “chihuil” (Bagre panamensis, Gill...