Speak No Evil (Danish: Gæsterne, lit. 'The Guests') is a 2022 psychological horror thriller film directed by Christian Tafdrup from a screenplay he co-wrote with his brother Mads. It is produced by Jacob Jarek and is distributed by Nordisk Film. Filming took place in Denmark, the Netherlands, and Italy, and most of the film is shot in English, with some scenes in Danish and Dutch. The film centers on Bjørn (Morten Burian) and Louise (Sidsel Siem Koch), a Danish couple who are invited by Patrick (Fedja van Huêt) and Karin (Karina Smulders), a Dutch couple, to their country house for a weekend holiday; the hosts soon begin to test the limits of their guests as a tense situation escalates.

Speak No Evil premiered in the Midnight section at the 38th Sundance Film Festival on 22 January 2022. It was theatrically released in Denmark on 17 March 2022 and in the Netherlands on 21 July. The film grossed $631,249 worldwide and was acclaimed for its directing and performances of the cast by critics, who also praised the film's supple social commentary, tone and suspense.

An American remake produced by Blumhouse Productions was released on 13 September 2024.