Dictionnaire biographique du mouvement ouvrier international

Dictionnaire biographique du mouvement ouvrier international (DBMOI, "Biographical Dictionary of the International Labor Movement") is a nine-volume labor movement biographical dictionary series edited by historian Jean Maitron and his successor Claude Pennetier. It extends the Dictionnaire biographique du mouvement ouvrier français to countries outside of France and is part of the collection together known as Le Maitron.

The online Dictionary, made available in 2018, includes 225,711 articles, sometimes enriched. The online topical and national dictionaries include Algeria, America, Africa, China, Comintern, Japan, Teachers, Railroad workers, Spanish Civil War Volunteers, and Women, among others.