Floc can refer to: Farm Labor Organizing Committee, a labor union Federated Learning of Cohorts (FLoC), a type of web tracking for interest-based advertising Federated Logic Conference (FLoC), a conglomeration of mathematical logic and computer science conferences Floc (or flock), flake of precipitate that comes out of solution during the process of flocculation Floc (biofilm), a specialized biofilm suspended in water Floc de Gascogne, a sweet apéritif made from a blend of grape juice and Armagnac