O No, John
O Sacred Feast
O Savior of the World
O Sifuni Mungu
O Sing a New Song
O Sing Unto the Lord
O Sons and Daughters
O Taste and See
O Vos Omnes
O Wake and Sing, Good Christians
O Waly, Waly
O Welcome the Savior
O, No John
Ob-La-Di, Ob-La-Da
Obwisana
Ocean, Sing a Song of Home
Och Jungfrun Hon Går I Ringen
Ode to Music
Odi Odi
Of Love
Of the Father's Love Begotten
Oh Come, Emmanuel
Oh Shenandoah
Oh Susanna Stomp
Oh, Whistle
Oh, Dear! What Can the Matter Be?
Oh, Didn't It Rain
Oh, How Joyfully
