USA - DATA.gov
Official data catalogue of the U.S. government.
http://www.data.gov
Europe - Open Data Portal
Official data catalogue of the European Union.
http://open-data.europa.eu
Spain - datos.gob.es
Data catalogue of the Spanish government.
http://datos.gob.es
Singapore - Data.gov.sg
Official data catalogue of Singapore.
http://beta.data.gov.sg/
Great Britain - data.gov.uk
Data catalogue of the British government.
http://www.data.gov.uk
Norway - data.norge.no
Official data catalogue of the Norwegian government.
http://data.norge.no
Australia - data.gov.au
Data catalogue of the Australian government.
http://www.data.gov.au
New Zealand - data.govt.nz
Official data catalogue from the government of New Zealand.
http://www.data.govt.nz/
Kenya - Open Kenya
Data catalogue of the Kenyan government.
http://opendata.go.ke
Navarra - Open Data Navarra
Data catalogue of the Spanish province of Navarra.
http://www.navarra.es/home_es/Open-Data/
San Francisco - DataSF
Data catalogue of the city of San Francisco, California.
http://datasf.org
Philadelphia - open data Philli
Data catalogue of the city of Philadelphia, Pennsylvania.
http://www.opendataphilly.org/
Baltimore - OpenBaltimore
Data catalogue of the city of Baltimore, Maryland.
http://data.baltimorecity.gov
Vancouver - Open Data Catalogue
Data catalogue of the city of Vancouver, Canada.
http://data.vancouver.ca
London - london.gov.uk
Data catalogue of the city of London.
http://data.london.gov.uk
France - data.gouv.fr
Official data catalogue of France.
http://www.data.gouv.fr
Paris - PARISDATA
Data catalogue of the city of Paris.
http://opendata.paris.fr
Europe - PublicData.eu
Open data search engine developed by the Open Knowledge Foundation with the possibility to search for datasets from different data catalogues in Europe.
http://publicdata.eu
World Bank - data.worldbank.org
Data catalogue from the World Bank containing development data, visualization tools and an API.
http://data.worldbank.org
UN - undata
Data catalogue by the United Nations (UN) with access to statistical data.
http://data.un.org
Worldwide - datacatalogs.org
Curated list of data catalogues from around the world.
http://datacatalogs.org
Worldwide - Public Dataset Brows...
Very extensive collection and map visualization of data catalogues worldwide maintained by the Spanish CTIC foundation.
http://datos.fundacionctic.org/sandbox/ca...