Matheryn Naovaratpong

Matheryn "Einz" Naovaratpong (February 29, 2012 – legal death January 8, 2015) was a 2-year-old Thai girl who became the youngest cryopreserved person in the world to date in 2015. Having legally died of brain cancer, she was neuropreserved by the Alcor Life Extension Foundation.

The Netflix original documentary film Hope Frozen (2018) follows her family who decided to have her cryopreserved.