Octet may refer to: Music Octet (music), ensemble consisting of eight instruments or voices, or composition written for such an ensemble String octet, a piece of music written for eight string instruments Octet (Mendelssohn), 1825 composition by Felix Mendelssohn Octet (Bruch), 1920 composition by Max Bruch Octet (Beethoven), 1793 composition by Ludwig van Beethoven Octet (Lachner), 1850 composition by Franz Lachner Octet (Reich), 1979 composition by Steve Reich Octet (Reinecke),1892 composition by Carl Reinicke Octet (Schubert), 1824 composition by Franz Schubert Octet (Stravinsky), 1923 composition by Igor Stravinsky Violin octet, a family of stringed instruments Octet (musical), a musical by Dave Malloy Ballet Octet (Christensen), 1958 ballet by Willam Christensen Octet (Martins), 2003 ballet by Peter Martins Science and technology Octet (computing), a grouping of eight bits Byte, a unit of digital information that most commonly consists of eight bits Octet stream, alternative name for byte stream Octet rule, chemical theory stating that atoms tend to combine so they each have eight valence electrons Octet truss, type of space frame See also 8 (disambiguation) Eightfold Way (physics), theory organizing subatomic baryons and mesons into octets Octal, base-8 number system Octave (poetry) Octetra, a sculpture by Isamu Noguchi Okta, a meteorological unit of measurement of cloud cover in terms of how many eighths of the sky are covered in clouds