Turtle Island Restoration Network (TIRN) is a United States 501(c)(3) non-profit organization founded in 1999 whose mission is "To take swift and decisive action to protect and restore marine species and their habitats and to inspire people in communities all over the world to join us as active and vocal marine species advocates.
In order to achieve its goals, TIRN uses a combination of grassroots education and organizing, legal pressure, hands-on conservation, innovative use of the media, research and policy advocacy.
TIRN states its vision as: "Foreseeing a time when a critical-mass of people in communities all over the world share a common understanding of the intrinsic value of biodiversity and a permanent commitment to acting as wise, willing and able stewards of life in the earth's oceanns and o its lands.
This had at the time been an affiliate organization of the Earth Island Institute since 1989, focusing on the international protection of endangered sea turtles.
The project, based in Olema, Marin County, California, now includes offices in the Gulf of Mexico, Central America and the Western Pacific.