- Oceans
- O my soul Do you not know
- O come all ye faithful Joyful
- O Come All Ye Faithful
- Oh! Great is our God
- Oh Jesus You’re my
- Oh Lord my God When I
- Oh my soul
- Old Rugged Cross
- O Lord give me an undivided heart
- O Lord You have been good
- Oh what a wonderful Wonderful day
- Oh heaven is in my heart
- One Way
- Open our eyes Lord We want to see Jesus
- Open the eyes of my heart
- Open your ears O Christian people
- O Praise the Name
- O the Blood
- Our confidence is in the Lord
- Our God is an awesome God
- Our God is the Lion
- Our heart our desire
- Over the mountains and the sea