| Fortress | |
| Cover: | Theeohseesfortress.jpg |
| Type: | single |
| Artist: | Thee Oh Sees |
| B-Side: | Man in a Suitcase |
| Released: | February 12, 2016 |
| Recorded: | The Dock, Sacramento |
| Genre: | Garage rock, psychedelic rock |
| Length: | 4:45 |
| Label: | Castle Face Records |
| Prev Title: | The Ceiling |
| Prev Year: | 2015 |
"Fortress" is a song by American garage rock band Thee Oh Sees, released as a limited edition single on February 12, 2016 on Castle Face Records. The song, and its b-side, "Man in a Suitcase", were recorded during the same sessions as the band's sixteenth studio album, Mutilator Defeated At Last (2015). "Man in a Suitcase" was performed by the band at several live performances, prior to its release, and is included on the live album, Live in San Francisco (2016).
In a positive review for Pitchfork, Evan Minsker praised the contributions of drummer Nick Murray and the consistency of Thee Oh Sees' output: "Fortress" isn't an adrenaline rush on the level of "Tunnel Time". It's muscular, sure, but it's also patient—another sign they could keep churning out solid material for years to come."[1] In another positive review, Stereogum's Tom Breihan wrote: "It's a jagged, percussive banger driven by a slashing guitar riff and a storm of drums, and it's very much the sort of thing that will hit like a bomb when they play it live."[2]