Jon Hanna is an event producer, editor, writer, lecturer, and harm reduction advocate working in the field of entheogens and psychoactives.

He is best known as the producer of the Mind States conference series, which explores various means of achieving altered states of consciousness. Projects he has edited have included Back From The Void by Zoe Seven, Higher Wisdom compiled by Drs. Charles S. Grob and Roger Walsh, Ketamine: Dreams and Realities by Dr. Karl Jansen, The Spirit of the Internet by Lawrence Hagerty, Tryptamine Palace: 5-MeO-DMT and the Bufo alvarius Toad by James Oroc, Evolver magazine, contributions to The Journal of Transpersonal Psychology, and three special issues of the MAPS Bulletin.

Author of the Psychedelic Resource List, Hanna is considered somewhat of a "psychedelic consumer advocate", highlighting reputable vendors as well as exposing companies, events, and individuals that have less than scrupulous records. He has written articles, columns, and reviews for Entheogene Blätter, The Entheogen Review, Erowid, Heads, High Times, Morbid Curiosity, The Resonance Project, and Skunk.

He has spoken internationally on the topic of visionary art and entheogens, showcasing collections of psychedelic art and hallucinatory animation at events in Brazil, Canada, Costa Rica, Germany, Jamaica, Mexico, Portugal, and Switzerland. In the arena of harm reduction, he has lectured and worked as a sitter at Burning Man and the BOOM festival.