The United Nations General Assembly proclaimed 21 March the International Day of Forests in 2012. The Day celebrates and raises awareness of the importance of all types of forests. On each International Day of Forests, countries are encouraged to undertake local, national and international efforts to organize activities involving forests and trees, such as tree planting campaigns.

In 2025, forests and foods is the theme for the day, celebrating the crucial roles of forests in food security, nutrition and livelihoods. In addition to providing food, fuel, income and employment, forests support soil fertility, protect water resources, and offer habitats for biodiversity, including vital pollinators. They are essential for the survival of forest-dependent communities, particularly Indigenous Peoples, and contribute to climate change mitigation by storing carbon.