| O the Deep Deep Love of Jesus | Samuel Francis | www.youtube.com | Lyrics | O the Deep Deep Love of Jesus by Samuel Francis | |
| Obey my voice, and I will be your God | | | Lyrics | Obey my voice, and I will be your God | No Recording |
| Ocean | James Porter | | Lyrics | Ocean by James Porter | No Recording |
| Oceans (Where Feet May Fail) | Joel Houston, Matt Crocker, Salomon Ligthelm | www.youtube.com | Lyrics | Oceans (Where Feet May Fail) by Joel Houston, Matt Crocker, Salomon Ligthelm | |
| Oculi Nostri | Taizé | www.youtube.com | Lyrics | Oculi Nostri by Taizé | |
| Od yavo (Salaam) | sheva | www.youtube.com | Lyrics | Od yavo (Salaam) by sheva | |
| Of the Father’s Love Begotten | Prudentius | youtu.be | Lyrics | Of the Father’s Love Begotten by Prudentius | |
| Oh Blessed is the One | Carl Stovner | | Lyrics | Oh Blessed is the One by Carl Stovner | |
| Oh Freedom! | | www.youtube.com | Lyrics | Oh Freedom! | |
| Oh Happy Day | Edwin Hawkins | youtu.be | Lyrics | Oh Happy Day by Edwin Hawkins | |
| Oh Jisas | | | Lyrics | Oh Jisas | No Recording |
| Oh Lead Me | Delirious | www.youtube.com | Lyrics | Oh Lead Me by Delirious | |
| Oh Lord Hear My Prayer | Taizé | www.youtube.com | Lyrics | Oh Lord Hear My Prayer by Taizé | |
| Oh Lord Must I Do Unto Others | Psalters | | Lyrics | Oh Lord Must I Do Unto Others by Psalters | No Recording |
| Oh Lord You're Beautiful | Keith Green | | Lyrics | Oh Lord You're Beautiful by Keith Green | No Recording |
| Oh Lord, Tend to My Soul | | | Lyrics | Oh Lord, Tend to My Soul | No Recording |
| Oh! Oh! Oh! Oh! | Rod White | | Lyrics | Oh! Oh! Oh! Oh! by Rod White | No Recording |
| Old Rugged Cross | George Bennard | youtu.be | Lyrics | Old Rugged Cross by George Bennard | |
| On Jordan’s Stormy Banks I Stand | Samuel Stennett | www.youtube.com | Lyrics | On Jordan’s Stormy Banks I Stand by Samuel Stennett | |
| On Our Wedding Night | Kent E | | Lyrics | On Our Wedding Night by Kent E | No Recording |
| Once in Royal David's City | Cecil Alexander | www.youtube.com | Lyrics | Once in Royal David's City by Cecil Alexander | |
| One Bread One Body | | youtu.be | Lyrics | One Bread One Body | |
| One Day When | | | Lyrics | One Day When | No Recording |
| One Grey Morning | James Porter | | Lyrics | One Grey Morning by James Porter | No Recording |
| One Thing Remains | Jesus Culture | www.youtube.com | Lyrics | One Thing Remains by Jesus Culture | |
