| Name | Book/story/stage title | Notes |
| Wace, Hypaptia | Gala Night | Niece of the Bishop of Stortford |
| Waddington, G. G. | If I Were You | A wealthy American, father of Violet |
| Waddington, Molly | The Small Bachelor | A young woman, in love with George Finch |
| Waddington, Mrs | The Small Bachelor | Molly's wealthy step-mother |
| Waddington, Sigsbee H. | The Small Bachelor | Molly's father, short of money |
| Waddington, Violet | If I Were You | An American socialite |
| Wade-Pigott, Claude | Company for Henry | On Stock Exchange; lives near Ashby Paradene |
| Wagstaff, Corporal | The Military Invasion of America | A boy scout |
| Wagstaff, Mrs | Sitting Pretty | A teacher |
| Wagstaff, Scout-master | The Swoop | A senior scout |
| Wain, Mr | Mike at Wrykyn | House master at Wrykyn College |
| Walderwick, Christopher | Leave it to Psmith (play) | Member of the Morpheus Club |
| Walderwick, Hon. Hugo | Leave it to Psmith | Unknowing donator of a fine umbrella |
| Walkinshaw, Charles Augustus | How Payne Bucked Up | Boy at St. Austin's College |
| Waller, Ada | Psmith in the City | Robert's niece |
| Waller, Edward | Psmith in the City | Robert's young son |
| Waller, Robert | Psmith in the City | Head of Cash Dept,. New Asiatic Bank; a socialist |
| Walt | Sir Agravaine | A guard |
| Walton | The Head of Kay's | Boy at Eckleton College |
| Wanklyn, Horace | A Tithe for Charity | A novelist |
| Wapshott, Mr | Ukridge and the Home from Home | A guest at the Home from Home; ex inspector of drains |
| Ward, Mr | The Pothunters | Unpopular house master, St. Austin's College |
| Ward, Police Sergeant | The Old Reliable | A Hollywood cop |
| Warden, Eugene | Ruth in Exile | Ruth's father |
| Warden, Ruth | Ruth in Exile | A girl exiled in France |
| Wardle, Mrs | Mulliner's Buck-U-Uppo | Augustine Mulliner's landlady |
| Wardour, Marion | The Inimitable Jeeves | Pursued by Claude and Eustace |
| Waring, Stewart | Psmith Journalist | Standing for Alderman in N. Y., has been in a scandal |
| Warner, Sir Jaklyn | Bachelors Anonymous | A baronet and cad |
| Waterall, Mr | One Touch of Nature | A baseball fan |
| Waterbury, Jas | A scheming theatrical agent | |
| Waterbury, Jos | A pianist | |
| Waterbury, Mr | The Inferiority Complex of Old Sippy | Writer of boring magazine articles |
| Waterbury, Trixie | Jeeves and the Greasy Bird | Jas's niece; plays (fat) pantomime fairies |
| Waterford | A Prefect's Uncle | Boy at Beckford College |
| Waterman, Mr | Psmith Journalist | Louella Grenville Waterman's husband |
| Waters, Judson | Sitting Pretty | Bill Pennington's friend |
| Waters, Ramsden | The Rough Stuff | A golfing rabbit |
| Watkins, Orlo | The Go-Getter | The Crooning Tenor, afraid of rats and bats |
| Watling, Mr | The Story of Cedric | Myrtle's father |
| Watling, Miss Myrtle | The Story of Cedric | Cedric Mulliner's secretary |
| Watson | The White Feather | Boy at Wrykyn College |
| Watson | The Petticoat Influence | Football captain at Oxford University |
| Watson, Mrs June | The Inimitable Jeeves | Cook to Lord Bittlesham |
| Watson, Montagu | The Autograph Hunters | An author who rarely gives autographs |
| Watson-Watson, Reggie | Big Business | A dim bulb |
| Waugh-Bonner, Everard | Summer Moonshine | A paying guest at Walsingford Hall |
| Waveney, Lady Julia | The Tuppenny Millionaire | Staying at Roville |
| Weatherby, Joss | Quick Service | A staff artist and valet |
| Webster, Montague | The Girl on the Boat | Valet to Rufus Bennett; assists Sam Marlowe |
| Wedge, Col. Egbert | Lady Hermione's devoted husband | |
| Wedge, Lady Hermione | One of Lord Emsworth's sisters; looks like a cook | |
| Wedge, Veronica | Daughter of Lady Hermione and Col. E. | |
| Weeks | The Mixer | Butler for Peter's family |
| Weeks, Teddy | Ukridge's Accident Syndicate | An actor who refuses to have an accident |
| Weems, Henry | French Leave | A lawyer in Long Island |
| Weeting, Lord | Disentangling Old Percy | Edwin Craye |
| Weiler, Jost | William Tell Told Again | A Swiss |
| Welch, Fanny | The Small Bachelor | A pickpocket, 'Fainting Fanny', trying to go straight |
| Welch, Gladys | The Adventures of Sally | An actress of limited skill, but a good cook |
| Welch, J. G. | Boy at St. Austin's College | |
| Wellbeloved, George Cyril | A pig-man | |
| Wellbeloved, Marlene | Galahad at Blandings | George Cyril's niece; barmaid at the Emsworth Arms |
| Wells, Mortimer | A Prefect's Uncle | Beckford College old boy; judge of poetry competition |
| Welsh, Arthur | When Doctors Disagree | A barber at the Belvoir Hotel |
| West, Angela | Helping Freddie | A young woman |
| West, Jerry | The Girl in Blue | A cartoonist |
| West, William 'Bill' Paradene | Bill the Conqueror | The conqueror, a young man |
| Westaway | Reginald's Record Knock | A cricket club secretary |
| Westley, Andrew | Uncle of John Maude | |
| Weston, Alice | Bill the Bloodhound | A chorus girl |
| Weston, Betty | A Mixed Threesome | A young woman, into hero worshipping |
| Wetherby, Gladys | A Good Cigar is a Smoke | A poetess |
| Wetherby, Lord Algernon | Uneasy Money | Pauline's husband, an amateur painter |
| Wetherby, J. G. | If I Were You | A solicitor |
| Wetherby, Lady Pauline | Uneasy Money | A barefoot dancer |
| Wheeler, James B. | The Indiscretions of Archie | A New York artist |
| Whiffle, Augustus | Author of a book on pigs | |
| Whipple, Augustus | Author of a book on pigs | |
| White | Butler at Sanstead House school | |
| White | Bradshaw's Little Story | Boy at St. Austin's College |
| Whittaker, Gladys | Barmy in Wonderland | Actress with a temper |
| Whittaker, Prudence | Summer Moonshine | Secretary to Sir Buckstone Abbott |
| Wickham, Cuthbert | Dudley is Back to Normal | Roberta's cousin |
| Wickham, Lady | Roberta's mother | |
| Wickham, Roberta | 'Bobbie', red-haired trouble | |
| Wickhammersley, Lady Cynthia | The Inimitable Jeeves | Good friend of Bertie Wooster |
| Widgeon, Freddie | A young man about town | |
| Widdrington, Lady | Cats Will Be Cats | Widow and cat owner |
| Wiffin, Ambrose | The Passing of Ambrose | A victim of Roberta Wickham |
| Wiggins, Flora | Leave it to Jane | A waitress |
| Wilber, Sybil | Maiden name of Sybil Bannister | |
| Wilberfloss, J. Fillken | Psmith Journalist | Editor of Cosy Moments |
| Wilberforce, Maudie | Indian Summer of an Uncle | A large woman with a hearty laugh |
| Wilfred | The Passing of Ambrose | Roberta Wickham's young cousin |
| Wilkins | The Luck Stone | Boot boy at Haviland's House, Marleigh |
| Wilks, Nurse | Portrait of a Disciplinarian | An elderly retired nurse |
| Willard, Jill | Do Butlers Burgle Banks? | Nurse to Miss Isobel Bond |
| Willard, Peter | A golfer | |
| Willett | A Gentleman of Leisure | An actor in The Belle of Boulogne |
| William | The Pothunters | The 'Moke', servant at Merevale's, St. Austin's College |
| William | A Prefect's Uncle | Bootboy at Leicester's House, Beckford College |
| Williams | The Head of Kay's | Boy at Eckleton College |
| Williams, Jane | Something to Worry About | Sally Preston's aunt |
| Williams, Mr | Something to Worry About | Sally Preston's uncle |
| Williamson | The Luck Stone | Boy at Alderton College |
| Williamson, Mrs James | The Tabby Terror | James Trentham's sister, in the market for a cat |
| Willis | A Damsel in Distress | Blacksmith in Little Weeting |
| Willis, Doctor | The Luck Stone | A doctor |
| Willoughby | Mike at Wrykyn | Boy at Wrykyn College |
| Willoughby | Stylish Stouts | Butler to Mrs J G Beenstock |
| Willoughby, Enid | The Awakening of Rollo Podmarsh | Lettice's mother |
| Willoughby, Lettice | The Awakening of Rollo Podmarsh | Rollo Podmarsh's niece |
| Willoughby, Miss | Something Fresh | Maid to Lady Mildred Mant, a drama enthusiast |
| Willoughby, Mr | A Damsel in Distress | A writ-serving solicitor |
| Willoughby (Uncle) | Jeeves Takes Charge | Bertie Wooster's Uncle Willoughby; wrote his memoirs |
| Wilson | Mike and Psmith | Boy at Sedleigh College |
| Wilson | Ways to Get a Girl | Valet to Lord Barminster |
| Wilson, James | Ahead of Schedule | Valet to Rollo Finch |
| Wilson, P. V. | A Prefect's Uncle | Boy at Beckford College |
| Wilton, Jack | Wilton's Holiday | A young man with a secret |
| Wimbolt, Percy | The Amazing Hat Mystery | A Drone club member |
| Windlebird, Geoffrey | A Man of Means | A crooked financier |
| Windlebird, Mrs | A Man of Means | Geoffrey's wife |
| Windsor, Billy | Psmith Journalist | Sub-editor of Cosy Moments |
| Winfield, Kirk | The Coming of Bill | An aspiring artist |
| Winfield, Ruth | The Coming of Bill | Kirk's wife, but under her aunt's influence |
| Winfield, William Bannister | The Coming of Bill | Bill |
| Wingham, Rev. Hubert | The Inimitable Jeeves | Curate in Twing |
| Winkworth, Dame Daphne | Former school headmistress | |
| Winkworth, Gertrude | The Mating Season | Dame Daphne's daughter |
| Winkworth, Huxley | The Mating Season | Dame Daphne's son, a sneak |
| Winnington-Bates, Claude | Sam the Sudden | Failed poultry farmer, pursued Kay Derrick |
| Winship, Harold | Much Obliged, Jeeves | A Parliamentary candidate, known as Ginger |
| Winter, Jimmy | Oh, Kay! | A house owner |
| Wisbeach, Lord | Piccadilly Jim | A fake lord, guest of Nesta Pett |
| Wisdom, Cosmo | Cocktail Time | Son of Phoebe, usually between jobs |
| Wisdom, Hannah | Big Money | Berry Conway's 'old retainer' and former nurse |
| Wisdom, Phoebe | Cocktail Time | Mother of Cosmo |
| Witherby, Vera | Excelsior | A romantic girl |
| Witherspoon, Chief Inspector | Stiff Upper Lip, Jeeves | Alias of Jeeves |
| Witherspoon, Jane | Leave it to Jane | Peter's daughter; leave it to her |
| Witherspoon, Peter | Leave it to Jane | President of Atwater College |
| Wivelscombe, Earl of | The Luck of the Stiffhams | A peer of the Realm |
| Wix-Biffen, Dudley | Unpleasantness at Kosy Kot | A Drone |
| Wooster, Algernon | Something Fresh | Cousin of Lord Stockheath |
| Wooster, Bertie | A wealthy man about town and elsewhere | |
| Wooster, George | Lord Yaxley, Bertie's uncle | |
| Worple, Alexander | The Artistic Career of Corky | Author of American Birds |
| Worple, Bernard | The Story of Webster | A neo-vorticist sculptor |
| Worple, Rupert | Keeping in with Vosper | An old friend of Bradbury Fisher |
| Worplesdon, Lord Percy | Husband of Agatha (so uncle to Bertie Wooster) | |
| Wotherspoon, Orlando | Open House | Vice president of Our Dumb Chum's League |
| Wotsing | A detective's sidekick | |
| Wren | The Head of Kay's | Boy at Eckleton College |
| Wrench | Uneasy Money | Butler for Lord and Lady Wetherby |
| Wrenn, Matthew | Sam the Sudden | A resident of Valley Fields; magazine editor |
| Wright, Theophilus | The Strange Disappearance of Mr Buxton-Smythe | A school master at St. Asterisk's |
| Wuddus | Dudley Jones, Bore Hunter | Dudley Jones's friend |
| Wyatt, James | Mike at Wrykyn | Boy at Wrykyn College; stepson of Mr Wain |
| Wycherley, Pomona | Laughing Gas | A newspaper reporter |
| Wymondham-Wymondham, Algy | The Reverent Wooing of Archibald | A Drone |
| Wyvern, Colonel Aubrey | Ring for Jeeves | Chief Constable of Southmoltonshire |
| Wyvern, Jill | A veterinary surgeon | |
| Wyvern, Colonel Meredith | Money for Nothing | Pat's father, an old friend of Lester Carmody |
| Wyvern, Pat | Money for Nothing | Col. Meredith's daughter |