Clouddead (styled as cLOUDDEAD) was a musical group consisting of the experimental hip hop musicians Doseone (Adam Drucker), Why? (Yoni Wolf), and Odd Nosdam (David Madson). Generally Drucker and Wolf provide the group's vocals while Madson produces the music. Occasionally Madson's vocals can be heard, while Drucker and Wolf provide music, especially for the group's only album.

Clouddead's sound is notoriously hard to define, and although it is undoubtedly grounded in "traditional" hip-hop, influences as varied as electronica, psychedelic music and indie rock can be heard. Because of this non-traditional take on hip-hop, more conservative elements of the rap community have characterized Clouddead as "smartarse surrealism", with some elements of the community rejecting the notion that the group can be classed as hip hop at all, ignoring Doseone's request to "just call it hip hop".[attribution needed]

Clouddead's first six 10″ singles were compiled in 2001 as a self-titled compilation album. Printed on the sleeve of "Dead Dogs Two" is "this is cLOUDDEAD number 9 of ten", indicating that as of Ten, Clouddead, as a group, have finished making music. In an interview around Ten's release, Drucker hinted that tensions between Madson and Wolf, as well as each member's heavy workload, had hastened the group's demise.

The group's name came from a nonsensical knock-knock joke Drucker's sister told him when she was five years old.