This paper describes three new species of the genus Zodarion from the Iberian Peninsula: Z. alentejanum, Z. cesari, and Z. costapratae. One species, Z. lusitanicum, is newly recorded for Spain. In total 46 zodariid species are known from the Iberian Peninsula to date, of which 22 species are recorded from Portugal and 35 species from Spain. New faunistic records and distribution maps are given for another 18 zodariid taxa, either in the Iberian Peninsula or Madeira: Amphiledorus balnearius, Selamia reticulata, Zodarion alacre, Z. algarvense, Z. atlanticum, Z. costablancae, Z. duriense, Z. fuscum, Z. gregua, Z. jozefienae, Z. machadoi, Z. maculatum, Z. marginiceps, Z. merlijni, Z. pseudoelegans, Z. styliferum styliferum, Z. styliferum extraneum, and Z. viduum.