International Association of Geodesy
- Name: International Association of Geodesy
- Alternative Name: IAG
- Specification URI: https://www.iag-aig.org/
- Type: consortium
- Disciplines: Geodesy
- Keywords: geodesy
- Description: The Mission of IAG is the advancement of geodesy. It is implemented by furthering geodetic theory through research and teaching, by collecting, analyzing, modelling and interpreting observational data, by stimulating technological development and by providing a consistent representation of the figure, rotation, and gravity field of the Earth and planets, and their temporal variations.