Passaloecus is a genus of wasps in the family Pemphredonidae. The 40 species are found in the Nearctic.
They are especially represented in the Palearctic.

Species: These 48 species belong to the genus Passaloecus:

• Passaloecus annulatus (Say, 1837) ^{i c g}
• Passaloecus areolatus Vincent, 1979 ^{i c g}
• Passaloecus armeniacae Cockerell in Cockerell and Fox, 1897 ^{i c g}
• Passaloecus australis Merisuo, 1976 ^{i c g}
• Passaloecus borealis Dahlbom, 1844 ^{i c g}
• Passaloecus brevilabris Wolf, 1958 ^{i c g}
• Passaloecus clypealis Faester, 1947 ^{i c g}
• Passaloecus columnaris Ma and Q. Li, 2012 ^{i c g}
• Passaloecus corniger Shuckard, 1837 ^{i c g}
• Passaloecus cuspidatus F. Smith, 1856 ^{i c g b}
• Passaloecus cuspidifrons Merisuo, 1976 ^{i c g}
• Passaloecus dorsalis Kohl, 1912 ^c
• Passaloecus dubius Tsuneki, 1955 ^{i c g}
• Passaloecus electrobius Budrys, 1993 ^g
• Passaloecus eremita Kohl, 1893 ^{i c g}
• Passaloecus erugatus Vincent, 1979 ^{i c g}
• Passaloecus fasciatus Rohwer ^g
• Passaloecus gallicola Vincent, 1979 ^{i c g}
• Passaloecus gracilis (Curtis, 1834) ^{i c g}
• Passaloecus hinganicus Merisuo, 1976 ^{i c g}
• Passaloecus insignis (Vander Linden, 1829) ^{i c g}
• Passaloecus koreanus Tsuneki, 1974 ^{i c g}
• Passaloecus labrinigratus Ma and Q. Li, 2012 ^{i c g}
• Passaloecus lineatus Vincent, 1979 ^{i c g}
• Passaloecus longiceps Merisuo, 1973 ^{i c g}
• Passaloecus melanocrus Rohwer, 1911 ^{i c g}
• Passaloecus melanognanthus Rohwer, 1910 ^{c g}
• Passaloecus melanognathus Rohwer, 1910 ^{i g}
• Passaloecus microceras Sorg, 1986 ^g
• Passaloecus miltoloma Vincent, 1979 ^{i c g}
• Passaloecus mishimaensis Tsuneki, 1990 ^{i c g}
• Passaloecus mongolicus Tsuneki, 1972 ^{i c g}
• Passaloecus monilicornis Dahlbom, 1842 ^{i c g}
• Passaloecus multituberculatus Ma and Q. Li, 2012 ^{i c g}
• Passaloecus munax Sorg, 1986 ^g
• Passaloecus nipponicola Tsuneki, 1955 ^{i c g}
• Passaloecus patagiatus Vincent, 1979 ^{i c g}
• Passaloecus petiolatus Ma and Q. Li, 2012 ^{i c g}
• Passaloecus pictus Ribaut, 1952 ^{i c g}
• Passaloecus piletskisi Budrys, 1993 ^g
• Passaloecus relativus W. Fox, 1892 ^{i c g}
• Passaloecus ribauti Merisuo, 1974 ^{i c g}
• Passaloecus scudderi Cockerell, 1906 ^g
• Passaloecus singularis Dahlbom, 1844 ^{i c g}
• Passaloecus turanicus Gussakovskij, 1952 ^{i c g}
• Passaloecus turionum Dahlbom, 1844 ^{i c g}
• Passaloecus vandeli Ribaut, 1952 ^{i c g}
• Passaloecus vigilans Merisuo, 1976 ^{i c g}
• Passaloecus zherichini Budrys, 1993 ^g

Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net