Oak Ridge Boys
Oak Ridge Boys & Blackwood Brothers
Oak Ridge Boys & Stamps Quartet
Oak Ridge Boys & Statler Brothers
Oak Ridge Boys & the Harvesters
Oak Ridge Boys & the Jordanaires
Oaks Band
Oceans Above
Ocean's Edge
Odes of Solomon
Of One Accord
Ohman Brass
Old Fashioned Revival Hour Choir
Old Friends Quartet
Old Paths
Old Paths Trio
Old Time Gospel Hour Quartet
Old Time Gospel Hour Trio
Old Time Preachers Quartet
Olivia Collingsworth
Omega
Omega Quartet
One Accord
One Way
O'Neill Brothers
OneVoice
Opryland Gospel Quartet
Original Singing Wills Family
Orrells
Our Daily Bread
Out of Eden
Ovid Young
Oxendines