Outbreaks resource is a collection of infectious disease outbreak datasets distributed through an R package. The datasets are compiled from publicly available surveillance records, published studies, outbreak investigations, and simulated epidemic scenarios, and are standardized for epidemiological research and teaching. Variables can vary by dataset but mainly include case counts, dates of symptom onset, hospitalization status, demographic characteristics, transmission links, geographic locations, contact tracing information, and outbreak timelines. The collection contains data from outbreaks of diseases such as Ebola, Covid-19, Dengue, Zika, Influenza, Measles, and MERS. The resource includes both real-world and simulated outbreak data and is widely used for epidemiological analysis, outbreak reconstruction, education, and methodological development.