| San Diego Film Critics Society Award for Best Supporting Actress | |
| Awarded For: | Best Performance by an Actress in a Supporting Role |
| Presenter: | San Diego Film Critics Society |
| Country: | United States |
| Image Upright: | 1 |
| Year: | 1996 |
| Holder: | Rachel McAdams Are You There God? It's Me, Margaret. (2023) |
The San Diego Film Critics Society Award for Best Supporting Actress is an award given by the San Diego Film Critics Society to honor supporting female acting achievements in film-making.
| Year | Winner | Film | Role |
|---|---|---|---|
| 1996 | Lauren Bacall | The Mirror Has Two Faces | Hannah Morgan |
| 1997 | Jurnee Smollett | Eve's Bayou | Eve Batiste |
| 1998 | Kathy Bates | Primary Colors | Libby Holden |
| 1999 | Thora Birch | American Beauty | Jane Burnham |
| Year | Winner | Film | Role | |
|---|---|---|---|---|
| 2000 | Frances McDormand | Almost Famous | Elaine Miller | |
| 2001 | Naomi Watts | Mulholland Drive | Betty Elms / Diane Selwyn | |
| 2002 | Michelle Pfeiffer | White Oleander | Ingrid Magnussen | |
| 2003 | Renée Zellweger | Cold Mountain | Ruby Thewes | |
| 2004 | Natalie Portman | Closer | Alice Ayres / Jane Jones | |
| 2005 | Rachel Weisz | The Constant Gardener | Tessa Quayle | |
| 2006 | Lili Taylor | Factotum | Jan | |
| 2007 | Amy Ryan | Gone Baby Gone | Helene McCready | |
| 2008 | Marisa Tomei | The Wrestler | Pam / Cassidy | |
| 2009 | Samantha Morton | The Messenger | Olivia Pitterson |
| Year | Winner | Film | Role |
|---|---|---|---|
| 2010 | Lesley Manville | Another Year | Mary |
| 2011 | Shailene Woodley | The Descendants | Alexandra King |
| 2012 | Emma Watson | The Perks of Being a Wallflower | Sam |
| 2013 | Shailene Woodley | The Spectacular Now | Aimee Finecky |
| 2014 | Rene Russo | Nightcrawler | Nina Romina |
| 2015 | Jennifer Jason Leigh | The Hateful Eight | Daisy Domergue |
| 2016 | Michelle Williams | Manchester by the Sea | Randi Chandler |
| 2017 | Allison Janney | I, Tonya | LaVona Fay Golden |
| Laurie Metcalf | Lady Bird | Marion McPherson | |
| 2018 | Nicole Kidman | Boy Erased | Nancy Eamons |
| Zhao Shu-zhen | The Farewell | Nai Nai | |
| Year | Winner | Film | Role | |
|---|---|---|---|---|
| Youn Yuh-jung | Minari | Soon-ja | ||
| Ruth Negga | Passing | Clare Bellew | ||
| Kerry Condon | The Banshees of Inisherin | Siobhán Súilleabháin | ||
| Rachel McAdams | Are You There God? It's Me, Margaret. | Barbara Simon |