2006 WhatsOnStage Awards
The results of the 2006 Whatsonstage.com Awards were:
| Category | Winner | % of Vote |
| Best Actress in a Play | Kristin Scott Thomas - As You Desire Me at the Playhouse | 24% |
| Best Actor in a Play | Kevin Spacey - Richard II at the Old Vic | 24% |
| Best Supporting Actress in a Play | Suranne Jones - A Few Good Men at the Theatre Royal Haymarket | 23% |
| Best Supporting Actor in a Play | Anthony Head - Otherwise Engaged at the Criterion | 29% |
| Best Actress in a Musical | Jane Krakowski - Guys & Dolls at the Piccadilly | 27% |
| Best Actor in a Musical | Ewan McGregor - Guys & Dolls at the Piccadilly | 40% |
| Best Supporting Actress in a Musical | Ann Emery - Billy Elliot at the Victoria Palace | 23% |
| Best Supporting Actor in a Musical | Martyn Ellis - Guys & Dolls at the Piccadilly | 24% |
| Best Solo Performance | Megan Dodds - My Name Is Rachel Corrie at the Royal Court | 37% |
| Best Ensemble Performance | Heroes - at Wyndham’s | 22% |
| Best Takeover in a Role | Michael Ball - The Woman in White at the Palace | 24% |
| Best New Play | My Name Is Rachel Corrie developed by Katharine Viner & Alan Rickman - at the Royal Court | 39% |
| Best New Comedy | Who's the Daddy? by Lloyd Evans & Toby Young - at the King’s Head | 22% |
| Best New Musical | Billy Elliot - The Musical by Elton John & Lee Hall - at the Victoria Palace | 40% |
| The Samuel French Best Play Revival | Death of a Salesman - at the Lyric | 31% |
| Best Musical Revival | Guys & Dolls - at the Piccadilly | 51% |
| Best Shakespearean Production | Richard II - at the Old Vic | 26% |
| The London Calling Best Director | Alan Rickman - My Name Is Rachel Corrie at the Royal Court | 41% |
| Best Set Designer | Bob Crowley - Mary Poppins at the Prince Edward | 29% |
| Best Choreographer | Peter Darling - Billy Elliot at the Victoria Place | 31% |
| The MS London Newcomer of the Year | George Maguire, James Lomas & Liam Mower - Billy Elliot at the Victoria Palace | 45% |
| Best Off-West End Production | Sunday in the Park with George at the Menier Chocolate Factory | 34% |
| Best Regional Production | How to Succeed in Business Without Really Trying - at Chichester Festival Theatre | 23% |
| The Planet Hollywood Theatre Event of the Year | Ian McKellen making his panto dame debut in Aladdin | 32% |