2023 in Misfits Boxing was the second year in the history of Misfits Boxing, a crossover boxing promotion founded by English YouTuber KSI and run by Mams Taylor, Kalle and Nisse Sauerland. Misfits Boxing held 8 events in 2023.

Paul Michael Joseph Denino, better known as Ice Poseidon, is an American Internet personality, and live streamer, primarily of the video game Old School RuneScape and the IRLTooltip Real life genre. His peak prominence came in 2017 when his IRL streams became popular. He is best known for his IRL streams, which he describes as "life streaming". Rolling Stone named Denino as a "pioneer 'life streamer'".