| Officium primum | |
| Omnia audax | |
| On ne passe pas | | No one shall pass (L.) |  | Hull | |
| One and all | |
| Or Glory | |
| Paratus | |
| Paratus et fidelis | |
| Paratus pugnare pro patria | | Always prepared to fight for our country (L.) |  | NB Regt | |
| Parva sub ingenti | | The small protected by the great (L.) |  | PEIR | |
| Per ardua | |
| Perseverance | |
| Pervias rectas | |
| Primus in Indis | |
| Pristinae virtutis memor | |
| Pristinae virtutis memores | | Mindful of former valour (L.) |  | 8 KRIH | |
| Pro aris et focis | |
| Pro patria | |
| Pro rege et patria | |
| Pro rege, pro lege, pro patria conamur | |
| Quansem ilep | |
| Quem timebo | |
| Quicquid aut facere aut pati | |
| Quid nobis ardui | What is hard for us (L.) Motto of the Borough of Kensington (1901) |  | Kensington | |
| Quinque iuncta in uno | |
| Quis separabit? | |
| Quit you like men | |
| Quo fas et gloria ducunt | |
| Quo fata vocant | |