The Icelandic Forest Service (IFS) is an organization within the Ministry for the Environment and Natural Resources in Iceland's government. It helps with research, gives advice, and shares knowledge about forests in Iceland. It also represents Iceland in international forest-related projects.

The IFS has two main tasks: protecting and growing the few remaining native birch forests in Iceland, and planting trees for commercial forestry.

Before forests in Iceland were lost during the Middle Ages, about 40% of the land was covered in trees. In 1945, the IFS brought a plant called Alaskan lupine to Iceland to help stop soil erosion. This effort had some success but also some problems.

Today, only about 2% of Iceland is forested. The IFS aims to increase this to 10% through tree planting and natural forest regrowth. In recent years, planting trees on farms with government support has become the main way to grow forests. Under this program, landowners sign agreements, and plans are made for each farm. Seedlings are grown and shared, education is provided, and money is given to farmers to help with planting.

Government funding for these farm projects was highest between 2005 and 2009 but dropped sharply after the 2008 financial crisis. Tree planting has increased again in recent years after a long period of little progress. In recent times, because of signs of global warming, capturing carbon dioxide through tree planting has become a key reason for new forest projects in Iceland.