Our World in Data
Datasets for teaching ( The University of Sheffield)
UCI Machine Learning Repository
Datasets (Kaggle)
Unesco
The GlobalEconomy.com
Data from New Zealand
Social Science Data Sources & Statistical Methods (Eastern Michigan University)
Diversos (Prof. Winters)
Journal of Applied Econometrics ( banco de dados de artigos)
Banco de dados do INEP
Data.gov (USA)
Data Europa
Unicef
IBGE
New York City Open Data
Datasets for Data Mining, Data Science, and Machine Learning
The R datasets