Welcome to Wedding Hell (Korean: 결혼백서) is a 2022 South Korean streaming television series directed by Song Je-young and Seo Joo-wan, and starring Lee Jin-wook, Lee Yeon-hee, Yoon Yoo-sun and Kil Yong-woo. This KakaoTV original series is a 12-episode romance that depicts the process of preparing for marriage between a couple in their 30s. The first episode was released on May 23, 2022, on KakaoTV, a new episode was released every Monday, Tuesday, and Wednesday at 19:00 (KST) for four weeks. It is available for streaming in selected territories on Netflix.

A couple in their 30s is preparing for their wedding day. Their dream was to have a fairytale event. Facing the reality of organizing the big day shatters their dream.

In December 2021, Lee Jin-wook was confirmed to play protagonist of KakaoTV's original series. On April 21, first script reading scenes were released with major cast members and directors Song Je-young and Seo Joo-wan.