Housefull 4 is a 2019 Indian Hindi-language fantasy action comedy film directed by Farhad Samji and produced by Nadiadwala Grandson Entertainment and Fox Star Studios. The film is the fourth installment of the Housefull series, and stars an ensemble cast of Akshay Kumar, Riteish Deshmukh, Bobby Deol, Kriti Sanon, Pooja Hegde and Kriti Kharbanda in the lead roles. The plot deals with reincarnation. Three brothers are set to marry three sisters. However, a peek into the distant past reveals to one of the brothers that their brides have been mixed up in their current reincarnation.

The film was half directed by Sajid Khan, who had also directed the first two installments, but was replaced by Farhad Samji midway during the shooting due to Me Too allegations. Nadiadwala claimed the film to be the highest-budgeted Indian comedy film.

The film was theatrically released in India on 25 October 2019 during the occasion of Diwali and received mixed to negative reviews. The film became a major commercial success by grossing almost 300 crore worldwide. It went on to become the 4th highest grosser of 2019.