Graecoiulus
{{Short description|Genus of millipedes}}
{{Automatic taxobox
| taxon = Graecoiulus
| authority = Vagalinski & Lazányi, 2018
| type_species = Chromatoiulus imbecillus
| type_species_authority = Attems, 1935
}}
Graecoiulus is a genus of millipedes in the family Julidae. Members of the genus can be found in parts of the Balkans. The genus contains about 4 species.{{Cite journal |last=Vagalinski |first=Boyan |last2=LazáNyi |first2=Eszter |date=2018-05-21 |title=Revision of the millipede tribe Brachyiulini Verhoeff, 1909 (Diplopoda: Julida: Julidae), with descriptions of new taxa |url=https://www.mapress.com/zt/article/view/zootaxa.4421.1.1 |journal=Zootaxa |volume=4421 |issue=1 |doi=10.11646/zootaxa.4421.1.1 |issn=1175-5334|url-access=subscription }}