Timothy "Timoteo" Irwin Means Heinemann (March 13, 1944 – August 13, 2019) was an American Mexican ecotourism pioneer and environmentalist, who advocated for the protection and preservation of the Baja California peninsula and its wildlife.

Timothy Irwin Means was born on March 18, 1944, in Beaver Falls Pennsylvania to Melvin Wayne and Flora Agnes Heinemann.

Means pioneered adventure trips to Baja California Sur in 1974,[2] to help spur visitors into conviction and action.

With an emphasis on mindfulness, over the years he introduced thousands of visitors [3] [4] from around the world to the Baja wilderness through which he supported many research and education programs focused on marine and desert conservation.

To further the preservation of the wild Baja desert and to promote sustainable fishing in the Gulf of California, in 1990 he became a founding member of the Natural History Society Niparajá A.C.. For 45 years Means worked with fishermen, filmmakers, scientists and politicians to draw attention to the depletion of sea life and loss of wild lands posed by overfishing and development, working with American and Mexican environmentalists and patrons to help preserve Isla Espíritu Santo.