Acanthocephalus lucii

{{Short description|Species of thorny-headed worm}}

{{Speciesbox

| image =

| genus = Acanthocephalus (worm)

| species = lucii

| authority = (Müller, 1776)

}}

Acanthocephalus lucii, also known as the fish acanthocephalan, the spiny-headed worm, or the thorny-headed worm of fish,[https://www.gbif.org/species/9801951 Acanthocephalus lucii (Müller, 1776)]. gbif.org. Accessed 2023-06-07. is a species of parasitic worms belonging to the family Echinorhynchidae.{{cite web |title=Acanthocephalus lucii |url=https://www.sealifebase.ca/summary/Acanthocephalus-lucii.html |website=www.sealifebase.ca |access-date=25 January 2021}}

It is native to Europe.