Thomas K. Donaldson

Thomas K. Donaldson (January 1, 1944 – legal death January 19, 2006) was an American-born mathematician and cryonicist who also lived in Australia. He legally died of brain cancer and was neuropreserved by the Alcor Life Extension Foundation.

Donaldson is a signatory of the Scientists' Open Letter on Cryonics, having signed it on March 22, 2004.