Grateful Dead from the Mars Hotel is the seventh studio album by the Grateful Dead. It was mostly recorded in April 1974 and originally released on June 27, 1974. It was the second release under the band's own label, Grateful Dead Records, after fulfilling their contract with Warner Bros. Records.

This was the final album before the band's hiatus from touring in October 1974 during which time the band would finish up the film editing of The Grateful Dead Movie.

Three songs off this album were played a few times (Unbroken Chain, in the mid 1990s) or not at all (Pride of Cucamonga, Money Money) live. Pride of Cucamonga and Unbroken Chain are both songs sung by bassist Phil Lesh making these Lesh's final lead vocal work for the Dead for over ten years, and his last studio contributions ever (next to Box of Rain and New Potato Caboose)

When held upside down in front of a mirror, the graphic on the front of the album cover appears to say "Ugly Rumors" which inspired the name of Former Prime Minister Tony Blair's band, Ugly Rumours.

The album was released in a variety of ways after its original run:

• It was released again on LP in 1980 by Mobile Fidelity Records.
• It was released for the first time on CD in 1985 by Mobile Fidelity Sound Lab [according to blank">http://www.deaddisc.com; previous version of this article claimed 1995 by Arista].
• It was remastered, expanded, and released as part of the _Beyond Description (1973-1989) 12-CD box set in October 2004.
• The remastered version was then released separately on CD on March 7, 2006 by Rhino Records.