This is a list of ecoregions in Guyana.

Guyana is in the Neotropical realm. Ecoregions are listed by biome.

• Guianan Highlands moist forests
• Guianan moist forests
• Orinoco Delta swamp forests
• Tepuis
• Uatuma-Trombetas moist forests

• Guianan savanna

• Guianan mangroves

• Dinerstein, Eric; David Olson; Douglas J. Graham; et al. (1995). A Conservation Assessment of the Terrestrial Ecoregions of Latin America and the Caribbean. World Bank, Washington, D.C..