A Jamaican dub musician is a musician who creates or performs dub music, a genre that evolved from the backing tracks of Jamaican reggae in the late 1960s. Dub music is characterized by a "version" or "double" of an existing song, often instrumental, using B-sides of 45 RPM records and typically emphasizing the drums and bass for a sound popular in local sound systems. Dub artists create space-filling soundscapes, faded echoes, and repetition within musical tracks to tap into Afrofuturist concepts such as the nonlinearity of time and the projection of past sounds into an unknown future space. Dub music is in conversation with the cultural aesthetic of Afrofuturism and is regarded as the product of diaspora peoples, whose culture reflects the experience of dislocation, alienation, and remembrance.

In the sound system dub culture, the selector plays a vital role in the system, especially in Jamaican dancehalls. Dub music and toasting introduced a new era of creativity in reggae music, and from their beginning, toasting and dub music developed together and influenced each other. Dub music has influenced almost every other dance music genre from techno to broken beat and is the ultimate studio-based music. Dub music continues to make an unparalleled impact in live settings, and many soundsystems continue to operate today.

In summary, a Jamaican dub musician is a musician who creates or performs dub music, a genre that evolved from the backing tracks of Jamaican reggae in the late 1960s. Dub music is characterized by a "version" or "double" of an existing song, often instrumental, using B-sides of 45 RPM records and typically emphasizing the drums and bass for a sound popular in local sound systems. Dub artists create space-filling soundscapes, faded echoes, and repetition within musical tracks to tap into Afrofuturist concepts such as the nonlinearity of time and the projection of past sounds into an unknown future space.