Justin Kan's wedding to Emi Kan (ne Nagasawa) took place on September 5, 2020, in Las Vegas, Nevada. The ceremony was officiated by Chamath Palihapitiya, and the couple's first dance was to “Can't Help Falling in Love” by Elvis Presley. The wedding was a small and intimate affair, with only close friends and family members in attendance.
Kan is the co-founder and former CEO of Twitch, and Nagasawa is a former product manager at Google. The couple met in 2016 and got engaged in 2018. They welcomed their first child, a daughter named Sakura, in 2021.