Datasets - Mannheim Linked Data Catalog

Food and Agriculture Organization of the United Nations (FAO) Linked Data

Food and Agriculture Organization of the United Nations datasets and classifications.
International Monetary Fund (IMF) Linked Data

IMF data and metadata
Bundesamt für Statistik (BFS) - Swiss Federal Statistical Office (FSO) Linked...

Bundesamt für Statistik - Swiss Federal Statistical Office data. Currently contains only the classifications.

You can also access this registry using the API (see API Docs).