Long Day Good Night is the thirteenth and final studio album by American progressive metal band Fates Warning, released on November 6, 2020. It is Fates Warning's first release on Metal Blade Records since 2004's FWX and also the first to feature guitarist Mike Abdow as a full time member, which he became in 2017 having previously been a touring only member and appearing as a guest on their previous album Theories of Flight in 2016.

Fates Warning is an American progressive metal band, formed in Hartford, Connecticut, in 1982 by vocalist John Arch, guitarists Jim Matheos and Victor Arduini, bassist Joe DiBiase, and drummer Steve Zimmerman. There have been numerous lineup changes over the course of their 42-year career, and Matheos is the only constant member. As of 2020, the band consists of Matheos, vocalist Ray Alder, bassist Joey Vera, drummer Bobby Jarzombek and guitarist Michael Abdow. Fates Warning also had a revolving cast of drummers and guitarists by the time Jarzombek and Abdow joined the band in 2007 and 2020 respectively.