Montgomeryshire Wildlife Trust (Welsh: Ymddiriedolaeth Natur Sir Drefaldwyn) is one of six wildlife trusts in Wales.
National Trust | National Trust for Places of Historic Interest or Natural Beauty | Montgomeryshire | Wellcome Trust | National Trust for Historic Preservation | United States Fish and Wildlife Service | Wildlife Conservation Society | National Trust of Australia | Arctic National Wildlife Refuge | Wellcome Trust Sanger Institute | The Prince's Trust | BBC Trust | Leverhulme Trust | Durrell Wildlife Park | National Wildlife Federation | Durrell Wildlife Conservation Trust | Devon Wildlife Trust | Theodore Roosevelt National Wildlife Refuge Complex | Moorfields Eye Hospital NHS Foundation Trust | Metropolitan Bank and Trust Company | Wildlife management | Wildlife | The Royal Marsden NHS Foundation Trust | Terrence Higgins Trust | Saccharine Trust | Prince's Trust | Pilgrim Trust | NHS trust | New Zealand Historic Places Trust | National Book Trust |