The Society for the Protection of New Hampshire Forests is a private, non-profit land conservation 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 keep land undeveloped. It also performs advocacy and education services. It was established in 1901.
As of 2014, the society owns 172 pieces of property covering 52,217 acres (21,131 ha), holds conservation easements on 731 pieces of property covering 122,786 acres (49,690 ha), and has land transferred with deed restrictions on 94 properties, covering 13,377 acres (5,413 ha).
In addition to holding easements, the Forest Society acts as a resource for landowners and other, smaller conservation land trusts. Staff make presentations and host seminars for the public and other local land trusts. One of its larger events is their annual "Saving Special Places" workshop. Members of the public, town conservation commissions and land trusts attend seminars presenting information ranging from tax laws and conservation easement creation to fundraising techniques and marketing a land trust.
Among properties it owns are the Lost River Reservation in Woodstock, and the Emily & Theodore Hope Forest, 376 acres in Danbury.