The Society for the Protection of New Hampshire Forests (SPNHF) is a private, non-profit, land conservation and sustainable forestry organization based in the U.S. state of New Hampshire. It purchases or is given easements on property, or obtains outright ownership, as a way to conserve land for wildlife, recreation, sustainable forestry and sustainable agriculture. It also performs advocacy and education services. It was established in February 1901, with Frank W. Rollins as its first president. Philip W. Ayres was appointed the first Forester. During the 1920s, the SPNHF raised over $100,000 towards the purchase of land in Franconia Notch.