The International Organization for Plant Information (IOPI) is an international organization founded on September 20, 1991.^[1] It runs a series of collaborative international projects aimed at establishing databases of plant classification information and is committee of the International Union of Biological Sciences.^[2]

The Global Plant Checklist was its first objective to provide a list of all plants by merging data from existing sources. This required development of data standards as well as international co-operation, starting in 1993.^[3]

Later aims included the Species Plantarum Project to record taxonomic information about all the vascular plants in the world.^{[citation needed]}

Its dataset was later incorporated in the Catalogue of Life.