Oh, No! SSA - Ruth Morris Gray
Oh Happy Day SATB - arr. Kirby Shaw
Oh Beloved SATB - Kim André Arnesen
Offertory SATB - John Ness Beck
Offertory (Requiem) SSA - Gabriel Faure, arr. Desmond Ratcliffe
O sing, my tongue, of the mystery SATB - Frank Pesci
O Sing to the Lord a New Song SATB - Michael Burkhardt
O Sifuni Mungu SSAA - arr. Roger Emerson
Of the Father's Love Begotten SATB - Terre Johnson
O Sifuni Mungu SAB - arr. Roger Emerson
O Say, Can You See TTB - Ruth Morris Gray
Ocho kandelikas 2-Part - arr. Joshua Jacobson
O Saviour of the World SATB - John Goss (with organ)
Obwisana TB - arr. Victor C. Johnson
O Sacrum Convivium SATB - James Biery
O, Mister Moon TB - arr. Joshua Shank
O sacrum convivium Op. 79 SSA - Roberto Remondi
O Quam Gloriosum SSA - Jacob Narverud
O Quam Gloriosum SATB - Tomas Luis de Victoria, ed. Higinio Angles
O, I Got a Light SSA - arr. Brandon Waddles
O Perfect Love SATB - arr. Stephen M. Murphy
O Nata Lux SSA - Richard Ewer
O Nata Lux SATTB - Thomas Tallis
O My Love SSAA - Matthew Emery
