A new species and eight new subspecies of Papilionoidea discovered in Vietnam between 2002 and 2020 are described and illustrated. The status of two taxa are revised. New taxa include Pieridae: Delias sanaca bidoupa Monastyrskii Vu subspec. nov. and Talbotia naganum aurelia Monastyrskii Vu subspec. nov.; Nymphalidae: Abrota ganga pulcheria Monastyrskii Vu, subspec. nov.; Bassarona recta consonensis Monastyrskii Vu, subspec. nov.; Pantoporia bieti aurantina Monastyrskii To subspec. nov.; Ragadia latifasciata cristata Monastyrskii Vu, subspec. nov.; Ragadia latifasciata crystallina Monastyrskii Vu, subspec. nov.; Faunis indistincta luctus Monastyrskii Vu subspec. nov. Aemona gialaica Monastyrskii, K. Saito Vu, spec. nov. The taxon infuscata Devyatkin Monastyrskii, previously described as the subspecies Aemona tonkinensis infuscata, was elevated to the species level, while the taxon critias (Ragadia critias Riley Godfrey) was reduced to a subspecies. Three Satyrinae species were recorded from Vietnam for the first time: Palaeonympha opalina Butler, 1871; Ypthima motschulskyi Bremer Grey, 1853; and Ragadia latifasciata Leech, 1891.