Rainforest Trust is a US-based nonprofit environmental organization focused on the purchase and protection of tropical lands to strategically conserve threatened species.

[3] On September 16, 2013, because of diverging modus operandi, and as part of celebrating the organization's 25th anniversary, the World Land Trust-US changed its name to Rainforest Trust.

[4] Rainforest Trust supports the purchase of large tracts of land by local NGOs working across tropical Asia, Africa, and Latin America for the purposes of protecting it, in a fashion similar to the Nature Conservancy by making use of land trusts.

The organization also seeks to help in-situ conservation measures by providing training, capital and equipment for environmental stewardship in economically impoverished areas.

[6] Robert S. Ridgely, President Emeritus, is an expert on neotropical birds, on which he has published several books, is a longtime conservationist, and is the co-discoverer of the jocotoco antpitta.