British Independent Film Award for Best Supporting Actor
The British Independent Film Award for Best Supporting Actor is a discontinued annual award given by the British Independent Film Awards to recognize the best supporting performance by an actor in a British independent film.
From 2003 to 2007, only one award was presented for supporting performances named Best Supporting Actor/Actress. Since 2008, two categories named Best Supporting Actor and Best Supporting Actress are presented.
Actors Eddie Marsan and Sean Harris are the most nominated actors in this category since its creation in 2008 with three nominations each.
In July 2022, it was announced that the performance categories would be replaced with gender-neutral categories, with both Best Supporting Actor and Best Supporting Actress merging into the Best Lead Performance category. Additionally, a category named Best Joint Lead Performance was created for "two performances that are the joint focus of the film, especially where performances share a large number of scenes and screen time".
Winners and nominees
2000s
;Best Supporting Actor/Actress| Year | Actor/Actress | Film | Character |
| 2003 | Susan Lynch | 16 Years of Alcohol | Mary |
| 2003 | Shirley Henderson | Wilbur Wants to Kill Himself | Alice |
| 2003 | Sophie Okonedo | Dirty Pretty Things | Juliette |
| 2003 | Adrian Rawlins | Wilbur Wants to Kill Himself | Harbour |
| 2003 | Benedict Wong | Dirty Pretty Things | Guo Yi |
| 2004 | Eddie Marsan | Vera Drake | Reg |
| 2004 | Paddy Considine | My Summer of Love | Phil |
| 2004 | Romola Garai | Rory O'Shea Was Here | Siobhán |
| 2004 | Samantha Morton | Enduring Love | Claire |
| 2004 | Gary Stretch | Dead Man's Shoes | Sonny |
| 2005 | Rosamund Pike | The Libertine | Elizabeth Wilmot, Countess of Rochester |
| 2005 | Rob Brydon | A Cock and Bull Story | Captain Toby Shandy / Rob Brydon |
| 2005 | Tom Hollander | The Libertine | George Etherege |
| 2005 | Bill Nighy | The Constant Gardener | Sir Bernard Pellegrin |
| 2005 | Kelly Reilly | Mrs Henderson Presents | Maureen Ashford |
| 2006 | Leslie Phillips | Venus | Ian |
| 2006 | Martin Compston | Red Road | Stevie |
| 2006 | Joseph Gilgun | This Is England | Woody |
| 2006 | Stephen Graham | This Is England | Combo |
| 2006 | Vanessa Redgrave | Venus | Valerie |
| 2007 | Toby Kebbell | Control | Rob Gretton |
| 2007 | Cate Blanchett | Notes on a Scandal | Sheba Hart |
| 2007 | Colin Firth | And When Did You Last See Your Father? | Blake Morrison |
| 2007 | Samantha Morton | Control | Deborah Curtis |
| 2007 | Armin Mueller-Stahl | Eastern Promises | Vor Semyon |
;Best Supporting Actor
| Year | Actor | Film | Character |
| 2008 | Eddie Marsan | Happy-Go-Lucky | Scott |
| 2008 | Liam Cunningham | Hunger | Father Dominic Moran |
| 2008 | Ralph Fiennes | The Duchess | William Cavendish, 5th Duke of Devonshire |
| 2008 | Ralph Fiennes | In Bruges | Harry Waters |
| 2008 | Daniel Mays | Shifty | Chris |
| 2009 | John Henshaw | Looking for Eric | Meatballs |
| 2009 | Jim Broadbent | The Damned United | Sam Longson |
| 2009 | Michael Fassbender | Fish Tank | Connor |
| 2009 | Tom Hollander | In the Loop | Simon Foster |
| 2009 | Alfred Molina | An Education | Jack Mellor |
2010s
2020s
Multiple nominations
;3 nominations- Sean Harris
- Eddie Marsan
- Steve Buscemi
- Michael Fassbender
- Ralph Fiennes
- Domhnall Gleeson
- Barry Keoghan