QuizKnock (クイズノック - Kuizunokku) is a Japanese group and brand specializing in creating riddles and quizzes for various media. It was founded in October 2016 by Takushi Izawa, who also serves as the CEO of QuizKnock Co., Ltd. The group maintains a YouTube channel and has published various quiz books.
In 2023, they were hired by LEVEL-5 to design the puzzles of their puzzle game Professor Layton and the New World of Steam.
