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

The IFS has two main responsibilities: protecting and growing the few remaining native birchwood forests, and carrying out tree planting projects to support commercial forestry.

Before forests in Iceland were destroyed 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 both positive and negative outcomes.

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, government-supported tree planting on farms has become the main way to grow new forests. Under the farm afforestation program, agreements are made with landowners. Each farm gets a plan for planting, seedlings are produced and shared, education is provided, and financial support is given to landowners.

Government funding for these programs was highest between 2005 and 2009 but dropped sharply after the 2008 financial crisis. Tree planting has increased again after a long period of little progress. In recent years, signs of global warming have made absorbing carbon dioxide through new forests one of the most important reasons for starting new tree planting projects in Iceland.