John-Dylan Haynes (born 1971) is a British-German brain researcher.

Haynes studied psychology and philosophy at the University of Bremen from 1992 to 1997.

[1] Since 2006 he has been professor of theory and analysis of long-range brain signals at the Bernstein Center for Computational Neuroscience and at the Berlin Center for Advanced Neuroimaging (BCAN) of the Charité and the Humboldt University of Berlin.

In 2008 he was a member-at-large of the Association for the Scientific Study of Consciousness's executive committee.

In 2016, he got a Brain-Computer Interface Award for the work Brain-Computer Interfaces based on fMRI for Volitional Control of Amygdala and Fusiform Face Area: Applications in Autism with the TU Berlin's Neurotechnology Group.