This paper presents a study of the diversity of Pompilidae at Coiba National Park (PNC), República de Panamá. Specimens were collected with eight Malaise traps (modified Townes), 40 yellow pan traps (Moericke traps) and active sampling with entomological nets in the study area. Three field trips, were taken, each one lasting a period of nine days in March, July to August and November to December, 1998. A total of 389 specimens were caught, representing 5 subfamilies (Ceropalinae, Epipompilinae, Notocyphinae, Pepsinae and Pompilinae), 19 genera and 34 species or morphospecies. The most abundant subfamilies were Pompilinae (208 specimens) and Pepsinae (174 specimens), together representing 98.2% off all the specimens captured. The most abundant genera were Aporus (111 specimens of two species), and Pepsis (54 specimens of four species). The most diverse genera were Ageniella and Pepsis, with four species each. The PNC harbors 19 genera (59.3%) of the 32 reported in Panamá. Previous studies of the panamanian pompilids suggest that PNC could contain about a 15% of the species reported for Panama. No endemic species were recognized, but the presence of new species reported from other areas on the mainland of Panama were collected.