UFC Fight Night: Holloway vs. The Korean Zombie (also known as UFC on ESPN+ 83) is a mixed martial arts event produced by the Ultimate Fighting Championship that took place on August 26, 2023, at the Singapore Indoor Stadium in Kallang, Singapore.

Derrick Lewis vs. Sergey Spivak (Heavyweight) Devin Clark vs. Da Un Jung (Light Heavyweight) Marcin Tybura vs. Blagoy Ivanov (Heavyweight) Doo Ho Choi vs. Kyle Nelson (Featherweight) Yusaku Kinoshita vs. Adam Fugitt (Welterweight)