'''Strep''' may refer to:

* ''Streptococcus'', a genus of bacteria * Streptococcal pharyngitis, an infectious disease commonly called "strep throat" * ''Streptocarpus'', a genus of flowering plants * Streptomycin, an antibiotic * Specific Targeted Research Project (STReP), a type of medium-sized research project funded by the European Commission

{{disambiguation}}