| SiPM | Sipm | Sipo |
| SiPo | Sipo Bohale | SIPOC |
| Sipocot | Sipolisiinae | Sipontini |
| Siponto | Sipontum | Sipoo |
| Sipoolaiset | Sipora | Sipos |
| Sipote | Sipoteni | Sipovic |
| Sipovo | SIPP | Sippar |
| Sippar Sulcus | Sippe | Sippel |
| Sippenaeken | Sippenhaft | Sippersfeld |
| Sippie Folkertsma | Sippin on Sunshine | Sippin' on Some Syrup |
| Sipplingen | Sippo | Sippola |
| Sippy | Sippy Cup | Sippy Woodhead |
| SIPRA | Sipra | Siprage |
| SIPRI | SIPRNet | SIPS |
| Sipsey | Sipsi-ilban | Sipsongpanna |
| Siptah | Siptan | SIPTEL |
| Siptenfelde | Sipuncula | Sipunculidi |
| Sipunculoidei | Sipunovskaja | Sipunovskij rajon |
| Sipy | Sipyaeregon | Sipyəreğon |
| Sipylos | Siq | SIQ |
| Siq (Petra) | Siqalonu | Siqaya |
| Siqāya | Siqin Gaowa | Siqueira |
| Siqueira Campos | Siqueira Luciano | Siqueirense |
| Siqueirensi | Siqueiros | Siqueiros (film) |
| Siqueiros, pasión, color de furia | Siqueiros, pasion, color de furia | Siquijor |
| Siquinala | Siquinalà | Siquinalá |
| Siquirres | Siquisiquesuchus | Siquisiquesuchus venezuelensis |
| Sir | SIR | SIR (casa discografica) |
| Sir (disambigua) | SIR (etichetta discografica) | Sir (Libano) |
| Sir - Cenerentola a Mumbai | SIR - Società Italiana Resine | Sir Aaron Klug |
| Sir Aglovale | Sir Agravain | Sir Agravaine |
| Sir Alan Gardiner | Sir Alan H. Gardiner | Sir Alan Yarrow |
| Sir Albert Douglas | Sir Aldingar | Sir Alec Douglas-Home |
| Sir Alex Ferguson | Sir Andrew Smith | Sir Angus Stewart Deaton |
| Sir Anthony Eden | Sir Anthony Mamo | Sir Antoon van Dyck |
| Sir Archibald Edward Garrod | Sir Arthur Chichester | Sir Arthur Conan Doyle |
| Sir Arthur Conan Doyle's Sherlock Holmes | Sir Arthur Lewis | Sir Arthur Pendragon |
| Sir Arthur Streeton | Sir Arthur Sullivan | Sir Arthur Wellesley, Duca di Wellington |
| Sir Artur McGregor | Sir Aston Webb | Sir Balan |
| Sir Balin | Sir Bani Yas | Sir Barton |
| Sir Bedivere | Sir Benjamin Hall | Sir Benjamin Thompson |
| Sir Billi | Sir Biss | Sir Bleoberis de Ganis |
| Sir Bob Cornelius Rifo | Sir Bob Geldof | Sir Breunor |
| Sir Caradoc | Sir Carados | Sir Carl Wilhelm Siemens |
| Sir Cedric Hardwicke | Sir Charles Holmes | Sir Charles Holroyd |
| Sir Charles Knowles, I baronetto | Sir Charles Lock Eastlake | Sir Charles Thompson |
| Sir Charles Wyndham | Sir Christopher Lee | Sir Clive Sinclair |
| Sir Crocodile | Sir D'Arcy Osborne | Sir Daniel |
| Sir Daniel Fortesque | Sir Daniel Gooch | Sir Daria |
| Sir David Attenborough | Sir David Brewster | Sir David Wilkie |
| Sir Denis Nayland Smith | Sir Denis Thatcher | Sir Derek George Jacobi |
| Sir Derek H. R. Barton | Sir Dominic Pointer | Sir Douglas Robert Steuart Bader Bader |
| Sir Duke | Sir Ector | Sir Edmund William Gosse |
| Sir Eduardo Paolozzi | Sir Edward Bulwer-Lytton | Sir Edward Carson |
| Sir Edward Coke | Sir Edward Heath | Sir Edward Hyde |
| Sir Edward Pellew Islands | Sir Edward Poynter | Sir Edward Winter |
| Sir el Gharbiyeh | Sir Elton John | Sir Ernst Hans Josef Gombrich |
| Sir Erskine William Gladstone, VII baronetto | Sir Ettore | Sir Ettore (Disney) |
| Sir Flatrey | Sir Francis Chichester | Sir Francis Cook |
| Sir Francis Drake | Sir Francis Drake (serie televisiva) | Sir Francis Gordon Lowe |
| Sir Francis Grant | Sir Francis James Child | Sir Francis Legatt Chantrey |
| Sir Francis Vane | Sir Francis Walsingham | Sir Frank Dicksee |
| Sir Frank Williams | Sir Frazer | Sir Frederic Bartlett |
| Sir Frederick Ashton | Sir Frederick Banting | Sir Frederick Burton |
| Sir Frederick Pollock | Sir Frederick William Burton | Sir Galahad of Twilight |
| Sir Gareth | Sir Garfield Sobers Trophy | Sir Gawain |
| Sir Gawain e il Cavaliere Verde | Sir Gawain e il Cavaliere Verde (film) | Sir Geoffrey Howe |
| Sir Georg Solti | Sir George and the Heiress | Sir George Gilbert Scott |
| Sir George Hope Islands | Sir George Hubert Wilkins | Sir George Keith Elphinstone |
| Sir Geraint | Sir Godfrey Kneller | Sir Gordon Howard Eliott Hodgkin |
| Sir Gordon Richards | Sir Gorgo | Sir Graham Moore Island |
| Sir Gregory Parsloe-Parsloe | Sir Griflet | Sir Guy Standing |
| Sir Hans Heysen | Sir Henri-Charles-Wilfrid Laurier | Sir Henry A. Layard |
| Sir Henry Arthur Winneke | Sir Henry Aubrey-Fletcher | Sir Henry Campbell-Bannerman |
| Sir Henry Merrivale | Sir Henry Picard | Sir Henry Tate, 1° baronetto |
| Sir Herbert Read | Sir Horatio Nelson | Sir Howard Andrew Clive Morrison |
| Sir Howard Stringer | Sir Hubert Wilkins | Sir Hudson Lowe |
| Sir Hugh | Sir Hugh Duberly | Sir Ian Hamilton |
| Sir Ian McKellen | Sir Isaac Isaacs | Sir Isaac Newton |
| Sir James Clark | Sir James Frazer | Sir James Galway |
| Sir James Hudson | Sir James Murray | Sir James Saumarez |
| Sir John Acton, VI baronetto | Sir John Barrow | Sir John Betjeman |
| Sir John Borlase Warren | Sir John Borlase Warren, I baronetto | Sir John Duckworth |
| Sir John Dugdale Astley, III baronetto | Sir John Everett Millais | Sir John Francis Edward Acton |
| Sir John French | Sir John in Love | Sir John Major |
| Sir John Millais | Sir John Moores | Sir John Mordaunt |
| Sir John Reginald Thomas Fullerton | Sir John Richard Nicholas Stone | Sir John Soane's Museum |
| Sir John Thynne | Sir John Wolstenholme (1562-1639) | Sir Jonathan Trelawny, III baronetto |
| Sir Joseph Banks | Sir Joseph Banks Group | Sir Joshua Reynolds |
| Sir Julius Vogel | Sir Karl Popper | Sir Kay |
| Sir Keir Starmer | Sir Lamorak | Sir Lancelot |
| Sir Lancelot (videogioco 1983) | Sir Lancelot (videogioco 1984) | Sir Lancillotto |
| Sir Laurence Olivier | Sir Leigh Teabing | Sir Lionel |
| Sir Lord Baltimore | Sir Lucan | Sir Lucano |
| Sir Lucious Left Foot: The Son of Chico Dusty | Sir Lumberjack | Sir Mark Elder |
| Sir Mark Thatcher | Sir Martin Archer Shee | Sir Martin Conway |
| Sir Matt Busby | Sir Maurice Henry Dorman | Sir Maurice Joseph Micklewhite, Jr. |
| Sir Michael Atiyah | Sir Michael Phillip Jagger | Sir Michael Rutter |
| Sir Mix-a-Lot | Sir Nature | Sir Nigel Barnard Hawthorne |
| Sir Nonglor | Sir Oliver Lodge | Sir Oliver Skardy |
