| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 441 | Olivia | Shakespearean | 'Twelfth Night', also called 'What You Will' A rich countess. | F | |
| 442 | Ophelia | Shakespearean | 'Hamlet, Prince of Denmark' Daughter to Polonius. | F | |
| 443 | Orleans | Shakespearean | 'King Henry V' Duke of Orleans. | M | |
| 444 | Orsino | Shakespearean | 'Twelfth Night', also called 'What You Will' Orsino, Duke of Illyria. | M | |
| 445 | Oswald | Shakespearean | 'Tragedy of King Lear' Steward to Goneril. | M | |
| 446 | Othello | Shakespearean | 'The Tragedy of Othello, Moor of Venice' Othello, the Moor, general of the Venetian forces. | M | |
| 447 | Overdone | Shakespearean | 'Measure for Measure' Mistress Overdone, a bawd. | F | |
| 448 | Oxford | Shakespearean | 'King Henry the Sixth, Part III' Earl of Oxford. 'King Richard III' Earl of Oxford. | M | |
| 449 | Page | Shakespearean | 'King Henry the Eighth' Anne Bullen, Katharine's Maid of Honour, afterwards Queen. 'The Merry Wives of Windsor' Mistress Anne Page, daughter to Mistress Ford. | F | |
| 450 | Page | Shakespearean | 'The Merry Wives of Windsor' A Gentleman of Windsor. Also William Page, his son. | M | |
| 451 | Pandarus | Shakespearean | 'The History of Troilus and Cressida' Uncle to Cressida. | M | |
| 452 | Pander | Shakespearean | 'Pericles, Prince of Tyre' A Pander. | M | |
| 453 | Pandulph | Shakespearean | 'King John' Cardinal Pandulph, the Pope's legate. | M | |
| 454 | Panthino | Shakespearean | 'Two Gentlemen of Verona' Servant to Antonio. | M | |
| 455 | Paris | Shakespearean | 'The Tragedy of Romeo And Juliet' Paris, a young Count, kinsman to the Prince of Verona. 'The History of Troilus and Cressida' King Priam's son. | M | |
| 456 | Parolles | Shakespearean | All's Well That Ends Well.' A follower of Bertram, Count of Rousillon. | M | |
| 457 | Part 1 and 2' | Shakespearean | Variant of Edmund: 'King Henry IV, Part 1' Earl of March. Scroop | M | |
| 458 | Patience | Shakespearean | 'King Henry the Eighth' Serving woman to Queen Katharine. | F | |
| 459 | Patroclus | Shakespearean | 'The History of Troilus and Cressida' A Greek commander. | M | |
| 460 | Paulina | Shakespearean | 'The Winter's Tale' Wife to Antigonus. | F | |