Parhaan naissivuosan Oscar-palkinto
Voittajat ja ehdokkaat > 2000-luku

| Vuosi | Näyttelijä | Elokuva | Rooli | Lähde |
| --- | --- | --- | --- | --- |
| 2000 | Marcia Gay Harden | Pollock | Lee Krasner |  |
| 2000 | Judi Dench | Pieni suklaapuoti | Armande Voizin |  |
| 2000 | Kate Hudson | Melkein julkkis | Penny Lane |  |
| 2000 | Frances McDormand | Melkein julkkis | Elaine Miller |  |
| 2000 | Julie Walters | Billy Elliot | Georgia Wilkinson |  |
| 2001 | Jennifer Connelly | Kaunis mieli | Alicia de Lardé-Nash |  |
| 2001 | Maggie Smith | Gosford Park | Constance Trentham |  |
| 2001 | Helen Mirren | Gosford Park | Jane Wilson |  |
| 2001 | Marisa Tomei | Satimessa | Natalie Strout |  |
| 2001 | Kate Winslet | Iris | Iris Murdoch |  |
| 2002 | Catherine Zeta-Jones | Chicago | Velma Kelly |  |
| 2002 | Kathy Bates | About Schmidt | Roberta Hertzel |  |
| 2002 | Julianne Moore | Tunnit | Laura McGrath-Brown |  |
| 2002 | Queen Latifah | Chicago | Matron Mama Morton |  |
| 2002 | Meryl Streep | Adaptation. Minun versioni | Susan Orlean |  |
| 2003 | Renée Zellweger | Päämääränä Cold Mountain | Ruby Thewes |  |
| 2003 | Shohreh Aghdashloo | Hiekan ja sumun talo | Nadereh Behrani |  |
| 2003 | Patricia Clarkson | Aprilin juhlat | Joy Burns |  |
| 2003 | Marcia Gay Harden | Menneisyyden ote | Celeste Samarco-Boyle |  |
| 2003 | Holly Hunter | Kolmetoista | Melanie Freeland |  |
| 2004 | Cate Blanchett | Lentäjä | Katharine Hepburn |  |
| 2004 | Laura Linney | Kinsey | Clara McMillen |  |
| 2004 | Virginia Madsen | Sideways | Maya Randall |  |
| 2004 | Sophie Okonedo | Hotelli Ruanda | Tatiana Rusesabagina |  |
| 2004 | Natalie Portman | Iholla | Jane Jones/Alice Ayres |  |
| 2005 | Rachel Weisz | Uskollinen puutarhuri | Tessa Abbott-Quayle |  |
| 2005 | Amy Adams | Junebug | Ashley Johnsten |  |
| 2005 | Catherine Keener | Capote | Harper Lee |  |
| 2005 | Frances McDormand | North Country | Glory Dodge |  |
| 2005 | Michelle Williams | Brokeback Mountain | Alma Beers-Del Mar |  |
| 2006 | Jennifer Hudson | Dreamgirls | Effie White |  |
| 2006 | Adriana Barraza | Babel | Amelia Hernández |  |
| 2006 | Rinko Kikuchi | Babel | Chieko Wataya |  |
| 2006 | Cate Blanchett | Paljastavat merkinnät | Bathsheba ”Sheba” Hart |  |
| 2006 | Abigail Breslin | Little Miss Sunshine | Olive Hoover |  |
| 2007 | Tilda Swinton | Michael Clayton | Karen Crowder |  |
| 2007 | Cate Blanchett | I’m Not There | Jude Quinn |  |
| 2007 | Ruby Dee | American Gangster | Mahalee Jones-Lucas |  |
| 2007 | Saoirse Ronan | Sovitus | Briony Tallis |  |
| 2007 | Amy Ryan | Gone Baby Gone | Helene McCready |  |
| 2008 | Penélope Cruz | Vicky Cristina Barcelona | Maria Elena |  |
| 2008 | Amy Adams | Doubt – Epäilys | sisar James |  |
| 2008 | Viola Davis | Doubt – Epäilys | rouva Miller |  |
| 2008 | Taraji P. Henson | Benjamin Buttonin uskomaton elämä | Queenie |  |
| 2008 | Marisa Tomei | The Wrestler – painija | Cassidy/Pam |  |
| 2009 | Mo’Nique | Precious | Mary Lee Johnston |  |
| 2009 | Penélope Cruz | Nine | Carla Albanese |  |
| 2009 | Vera Farmiga | Up in the Air | Alex Goran |  |
| 2009 | Maggie Gyllenhaal | Crazy Heart | Jean Craddock |  |
| 2009 | Anna Kendrick | Up in the Air | Natalie Keener |  |