The aim of this study was to evaluate the prevalence, abundance and average intensity of plerocercoids (PLs) of Adenocephalus pacificus in the most important commercial fish species from the Peruvian coast. A total of 28 species of fish were sampled and 12 017 specimens were analysed. The presence of PLs of A. pacificus were determined from Peruvian anchovy (Engraulis ringens), lorna drum (Sciaena deliciosa), striped mullet (Mugil cephalus), horse mackerel (Scomber japonicus), Peruvian rock sea bass (Paralabrax humeralis) and cabinza grunt (Isacia conceptionis) with a prevalence of 0.55, 24.96, 0.56, 1.79, 1.53 y 3.94%, respectively. Three different types of scolex of A. pacificus PLs, like as spherical, lanceolate, heart-shaped were identified, regardless of the host, area and sampling period.El presente estudio tuvo como objetivo evaluar la prevalencia, abundancia e intensidad media de plerocercoides (PLs) de Adenocephalus pacificus en pescados de mayor importancia comercial de la costa peruana. Se muestrearon 28 especies de pescados y se analizaron 12 017 especímenes. Se determinó la presencia de PLs de A. pacificus a partir de anchoveta (Engraulis ringens), lorna (Sciaena deliciosa), lisa (Mugil cephalus), caballa (Scomber japonicus), cabrilla (Paralabrax humeralis) y cabinza (Isacia conceptionis) con una prevalencia de 0.55, 24.96, 0.56, 1.79, 1.53 y 3.94%, respectivamente. Tres distintos tipos de escólex de PLs de A. pacificus fueron identificados como esférico, lanceolado y acorazonado, indistintamente del hospedero, zona y periodo de muestreo.