Knock Knock has won several awards for its outstanding achievements. These include the Outstanding Set Design award at the Drama Desk Awards, which was given to John Lee Beatty. Additionally, John Lee Beatty also received the Scenic Design award at The Hewes Awards. Furthermore, Daniel Seltzer's performance in Knock Knock was recognized and honored with the Performance award at the Theatre World Awards. These accolades highlight the exceptional talent and creativity displayed in the production of Knock Knock.