Although it's set in Sweden, most of Midsommar is in the English language. Some of the characters, however, do speak Swedish, but, ScreenRant
Midsommar (2019) intentionally omits subtitles for most Swedish dialogue to immerse viewers in the characters' isolation, with full translations generally only available through fan-made, community-sourced subtitles. While the theatrical cut features limited official English subtitles, specialized, user-created subtitle files are often required for the Director's Cut to translate the Hårga's conversations. For a detailed discussion on available subtitles, visit Reddit www.reddit.com/r/Midsommar/comments/14qq9q4/does_anyone_have_the_subtitle_file_for_the/. Midsommar: 15 Hidden Details Everyone Completely Missed Midsommar(2019)135 Available subtitles