Musik untuk Album Soundtrack Film Darkest Hour (2017) disusun oleh Dario Marianelli & Vikingur Olafsson. Album ini rilis di iTunes pada tanggal 17 November 2017. Album ini diisi dengan 19 lagu di dalamnya. Berikut daftar lagu yang ada di dalamnya.
Daftar Kumpulan Lagu Soundtrack Film Darkest Hour (2017)
- Prelude
- Where Is Winston?
- Full English
- A Telegram from the Palace
- One of Them
- Winston and George
- First Speech to the Commons
- The War Rooms
- From the Air
- I Wouldn't Trust Him with My Bicycle
- Radio Broadcast
- History Is Listening
- Dario Marianelli - An Ultimatum
- Dynamo
- We Must Prepare for Imminent Invasion
- Dario Marianelli - The Words Won't Come
- Just Before the Dawn
- District Line, East, One Stop.
- We Shall Fight