This list of lichenicolous fungi of Iceland is based on a compiled checklist from 2009^[1] with the taxonomy of the fungi revised in 2022 using the Global Biodiversity Information Facility online database.

• Abrothallus parmeliarum (Sommerf.) Arnold
• Arthonia epiphyscia Nyl.
• Arthonia fuscopurpurea (Tul.) R.Sant.
• Arthonia gelidae R.Sant.
• Arthonia intexta Almq.
• Arthonia stereocaulina (Ohlert) R.Sant.
• Arthonia varians (Davies)Nyl.
• Arthophacopsis parmeliarum Hafellner
• Bachmanniomyces punctum (A.Massal.) Diederich & Pino-Bodas (listed as Phaeopyxis punctum (A.Massal.) Rambold, Triebel & Coppins)
• Bachmanniomyces uncialicola (Zopf) D.Hawksw.
• Buellia adjuncta Th.Fr.
• Carbonea supersparsa (Nyl.) Hertel
• Carbonea vitellinaria (Nyl.) Hertel
• Cecidonia umbonella (Nyl.) Triebel & Rambold
• Cecidonia xenophana (Körb. Triebel & Rambold
• Cercidospora epipolytropa (Mudd.) Arnold
• Cercidospora macrospora (Uloth) Hafellner & Nav.-Ros.
• Cercidospora punctillata (Nyl.) R.Sant.
• Cercidospora stereocaulorum (Arnold) Hafellner
• Cercidospora thamnoliicola Ihlen
• Cercidospora trypetheliza (Nyl.) Hafellner & Obermayer
• Cercidospora verrucosaria (Linds.) Arnold
• Clypeococcum placopsiphilum Øvst. & D.Hawksw.
• Collemopsidium cephalodiorum (Triebel & Grube) Grube (listed as Cercidispora cephalodiorum Triebel & Grube)
• Corticifraga peltigerae (Nyl.) D.Hawksw. & R.Sant.
• Didymellopsis pulposi (Zopf) Grube & Hafellner
• Endococcus fusiger Th.Fr. & Almq.
• Endococcus propinquus (Körb.) D.Hawksw.
• Endococcus rugulosus Nyl. (also listed as Endococcus perpusillus Nyl. which is a synonym of E. rugulosus)
• Epibryon conductrix (Norman) Nik.Hoffmann & Hafellner
• Geltingia associata (Th.Fr.) Alstrup & D.Hawksw.
• Heterocephalacria bachmannii (Diederich & M.S.Christ.) Millanes & Wedin (listed as Syzygospora bachmannii Diederich & M.S.Christ. in Diederich)
• Homostegia piggotii (Berk. & Broome) P.Karst.
• Intralichen christiansenii (D.Hawksw. & M.S.Cole
• Lasiosphaeriopsis christiansenii Alstrup & D.Hawksw.
• Lasiosphaeriopsis stereocaulicola (Linds.) O.E.Erikss. & R.Sant.
• Lichenochora lepidiotae (Anzi) Etayo & Nav.-Ros. (listed as Sphaerulina lepidiotae (Anzi) Vain.)
• Lichenodiplis lecanorae (Vouaaux) Dyko & D.Hawksw.
• Lichenopeltella cetrariicola (Nyl.) R.Sant.
• Lichenopeltella cladoniarum E.S.Hansen & Alstrup
• Lichenosticta alcicornaria (Linds.) D.Hawksw.
• Merismatium nigritellum (Nyl.) Vouaux
• Muellerella erratica (A.Massal.) Hafellner & Volk.John (listed as Muellerella pygmaea var. athallina (Müll.Arg) Triebel)
• Muellerella pygmaea (Körb.) D.Hawksw.
  • Muellerella pygmaea var. pygmaea
• Muellerella ventosicola (Mudd) D.Hawksw. (listed as Muellerella pygmaea var. ventosicola (Mudd) D.Hawksw.)
• Niesslia peltigericola (D.Hawksw.) Etayo (listed as Raciborskiomyces peltigericola (D. Hawksw.) M.E.Barr.)
• Opegrapha pulvinata Rehm (synonym of O. pulvinata Rehm ex Arnold)
• Opegrapha stereocaulicola Alstrup & D.Hawksw.
• Phaeocalicium populneum (Brond. ex Duby) A.F.W. Schmidt
• Polycoccum amygdalariae F.Berger & Triebel
• Polycoccum deformans R.Sant. (ined.)
• Polycoccum pulvinatum (Eitner) R.Sant.
• Polycoccum trypethelioides (Th.Fr.) R.Sant.
• Polycoccum vermicularium (Linds.) D.Hawksw.
• Pronectria erythrinella (Nyl.) Lowen
• Punctelia oxyspora (Tul.) Dicakar, A.Crespo & Lumbsch (listed as Phacopsis oxyspora (Tul.) Triebel & Rambold)
• Pronectria robergei (Mont. & Desm.) Lowen
• Pronectria solorinae nom prov.
• Protothelenella croceae (Bagl.& Carestia) Hafellner & H.Mayrhofer
• Pseudopyrenidium tartaricola (Linds.) Nav.-Ros., Zhurb. & Cl.Roux (listed as Weddellomyces tartaricola (Linds.) Alstrup & D.Hawksw.)
• Pyrenidium actinellum Nyl.
• Rhagadostoma brevisporum (Navar.-Ros. & Hladun) Navar.-Ros.
• Rhagadostoma lichenicola (DeNot) Keissl.
• Roselliniopsis gelidaria (Mudd) Matzer (listed as Polycoccum gelidarium (Mudd) D.Hawksw.)
• Sclerococcum amygdalariae (Triebel) Ertz & Diederich (listed as Dactylospora amygdalariae Triebel)
• Sclerococcum athallinum (Müll.Arg.) Ertz & Diederich (listed as Dactylospora athallina (Müll.Arg.) Hafellner)
• Sclerococcum attendendum (Nyl.) Ertz & Diederich (listed as Dactylospora attendenda (Nyl.) Arnold)
• Sclerococcum deminuta (Th.Fr.) Ertz & Diederich (listed as Dactylospora deminuta (Th.Fr.) Triebel)
• Sclerococcum frigidum (Hafellner) Ertz & Diederich (listed as Dactylospora frigida Hafellner)
• Sclerococcum gelidarium Etayo & F.Berger
• Sclreococcum glaucomarioides (Wiley ex Tuck.) Ertz & Diederich (listed as Dactylospora glaucomarioides (Willey ex Tuck.) Hafellner)
• Sclerococcum parasiticum (Flörke) Ertz & Diederich (listed as Dactylospora parasitica (Flörke) Zopf)
• Sclerococcum parellarium (Nyl.) Ertz & Diederich (listed as Dactylospora parellaria (Nyl.) Arnold)
• Sclerococcum purpurescens (Triebel) Ertz & Diederich (listed as Dactylospora purpurascens Triebel)
• Sclerococcum sphaerale (Ach.) Fr.
• Scutula krempelhuberi Körb.
• Scutula stereocaulorum (Anzi) Körb.
• Scutula tuberculosa (Th.Fr.) Rehm
• Sphaerellothecium araneosum (Rehm ex Arnold) Zopf
• Sphaeropezia santessonii (Zhurb., Etayo & Diederich) Baloch & Wedin (listed as Odontotrema santessonii Zhurb., Etayo & Diederich)
• Stigmidium allogenum (Nyl.) D.Hawksw. (listed as Stigmidium psorae (Anzi) Hafellner)
• Stigmidium marinum (Deakin) Swinscow
• Stigmidium peltideae (Vain.) R.Sant.
• Stigmidium stygnospilum (Minks) R.Sant.
• Tetramelas pulverulentus (Anzi) A.Nordin & Tibell
• Tetramelas phaeophysciae A.Nordin & Tibell
• Thamnogalla crombiei (Mudd) D.Hawksw.
• Xenonectriella ornamentata (D.Hawksw.) Rossman (listed as Pronectria ornamentata (D.Hawksw.) Lowen)
• Zwackhiomacromyces hyalosporus (Alstrup, D.Hawksw. & R.Sant.) Etayo & F.Berger (listed as Pyrenidium hyalosporum Alstrup, D.Hawksw. & R.Sant.)
• Zwackhiomyces dispersus (J.Lahm ex Körb.) Triebel & Grube (listed as Stigmidium conspurcans (Th.Fr.) Triebel & R.Sant.)

This article relies largely or entirely on a single source. (December 2022)