Jun Ōki (大木 淳 Ōki Jun, born 29 September 1974, in Kasukabe, Saitama, Japan), better known as Bibiru Ōki (ビビる 大木), is a Japanese comedian represented by Watanabe Entertainment. His wife is singer Akina. Ōki was a member of the comedy duo Bibiru. He graduated from Kasukabe City Tanihara Junior High School and Seibudai Chiba Junior & Senior High School. Ōki is an ambassador for Kusakabe and Hagi Furusato. He is also the honorary curator of the John Manjirō Museum. Ōki is a special envoy for Kōchi Prefecture tourism.