| Title | Author | Theme | Link | Source/Book | Funeral Code |
|---|---|---|---|---|---|
| O God Almighty Father | YouTube link | Gather | |||
| O God beyond All Praising | praise | YouTube link | Celebremos/Let Us Celebrate | ||
| O God you search me | YouTube link | ONE LICENSE | |||
| O God You Search Me #509 | YouTube link | Gather | |||
| O God, Our Help in Ages Past | funeral | YouTube link | Gather | Opening/Processional | |
| O Little Town of Bethlehem | Christmas season | YouTube link | Celebremos/Let Us Celebrate | ||
| O Lord of Light ( CREATOR ALME SIDERUM) | Advent | YouTube link | Celebremos/Let Us Celebrate | ||
| O Loving God | funeral | YouTube link | Gather | Communion | |
| O Most Holy One/ O Sanctissima | Blessed Virgin Mary | YouTube link | Celebremos/Let Us Celebrate | ||
| O Sacrament Most Holy | eucharistic devotion | YouTube link | Celebremos/Let Us Celebrate | ||
| O Sacred Head, Surrounded # 435 | YouTube link | Gather | |||
| O Saving Victim / O Salutaris Hostia | eucharistic devotion | YouTube link | Celebremos/Let Us Celebrate | ||
| O Sons and Daughters | YouTube link | Gather | |||
| Ofertorio Nicaraguense | YouTube link | Unknown | |||
| On Eagle's Wings | Joncas | comfort, trust, funeral | YouTube link | Celebremos/Let Us Celebrate | Final/Closing |
| On Jordan's Bank | Advent | YouTube link | Celebremos/Let Us Celebrate | ||
| On The Journey to Emmaus #445 | Easter | YouTube link | Gather | ||
| On This Day O Beautiful Mother | YouTube link | Unknown | |||
| Once in Royal David's City | Christmas season | YouTube link | Celebremos/Let Us Celebrate | ||
| One Bread, One Body #813 | Foley | eucharist, funeral | YouTube link | Celebremos/Let Us Celebrate | Communion |