Landmass (2008) is an album by the American ambient musician Steve Roach.

The tracks on Landmass were recorded on May 20, 2007,[5] live on the Star's End radio program in Philadelphia, Pennsylvania.

Only a few hours after Steve Roach had given a concert at the Episcopal Church at Penn, his equipment was moved to the WXPN studio where, beginning a little after two in the morning, Roach performed and created each track.

The sounds, themes, and sonic "sub-structures" were prepared ahead of time, and the tracks were later edited for length prior to their release.

[6] Landmass was chosen to be the 20th release on Steve Roach's Timeroom Editions label, which also celebrated its 10th anniversary in 2008.