Nastro d'Argento for Best Supporting Actress

1940s

• 1946 – Anna Magnani – Rome, Open City
• 1947 – Ave Ninchi – To Live in Peace
• 1948 – Vivi Gioi – Tragic Hunt
• 1949 – Giulietta Masina – Senza pietà

  1950s

• 1950 – not awarded
• 1951 – Giulietta Masina – Variety Lights
• 1952 – not awarded
• 1953 – not awarded
• 1954 – not awarded
• 1955 – Tina Pica – Pane, amore e gelosia
• 1956 – Valentina Cortese – Le amiche
• 1957 – Marisa Merlini – Tempo di villeggiatura
• 1958 – Franca Marzi – Nights of Cabiria
• 1959 – Dorian Gray – Mogli pericolose

  1960s

• 1960 – Cristina Gaioni – Nella città l'inferno
• 1961 – Didi Perego – Kapò
• 1962 – Monica Vitti – La notte
• 1963 – Regina Bianchi – Four days of Naples
• 1964 – Sandra Milo – 8½
• 1965 – Tecla Scarano – Marriage Italian-Style
• 1966 – Sandra Milo – Juliet of the Spirits
• 1967 – Olga Villi – The Birds, the Bees and the Italians
• 1968 – Maria Grazia Buccella – I Married You for Fun
• 1969 – Pupella Maggio – Be Sick... It's Free

  1970s

• 1970 – not awarded
• 1971 – Francesca Romana Coluzzi – Venga a prendere il caffè da noi
• 1972
• 1973 – not awarded
• 1974 – Adriana Asti – A Brief Vacation
• 1975 – Giovanna Ralli – We All Loved Each Other So Much
• 1976 – Maria Teresa Albani – Down the Ancient Staircase
• 1977 – Adriana Asti – The Inheritance
• 1978 – Virna Lisi – Beyond Good and Evil
• 1979 – Lea Massari – Christ Stopped at Eboli

  1980s

• 1980 – Stefania Sandrelli – La terrazza
• 1981 – Ida Di Benedetto – Fontamara
• 1982 – Claudia Cardinale – The Skin
• 1983 – Virna Lisi – Time for Loving
• 1984 – Monica Scattini – Away from where
• 1985 – Marina Confalone – Così parlò Bellavista
• 1986 – Isa Danieli – Camorra
• 1987 – Ottavia Piccolo – The Family
• 1988 – Elena Sofia Ricci – Me and My Sister
• 1989 – Stefania Sandrelli – Mignon Has Come to Stay

  1990s

• 1990 – Nancy Brilli – Piccoli equivoci
• 1991 – Zoe Incrocci – Towards Evening
• 1992 – Ilaria Occhini – Benvenuti in casa Gori
• 1993 – Paola Quattrini – Fratelli e sorelle
• 1994 – Milena Vukotic – Fantozzi in paradiso
• 1995 – Virna Lisi – La Reine Margot
• 1996 – Regina Bianchi – Camerieri
• 1997 – Lucia Poli – Albergo Roma
• 1998 – Mimma De Rosalia, Maria Aliotta, Annamaria Confalone, Adele Aliotta, Francesca Di Cesare, Eleonora Teriaca, Concetta Alfano, Antonia Uzzo – Tano da morire
• 1999 – Stefania Sandrelli – La cena

  2000s

• 2000 – Marina Massironi – Bread and Tulips
• 2001 – Stefania Sandrelli – The Last Kiss
• 2002 – Margherita Buy, Virna Lisi, Sandra Ceccarelli – The Best Day of My Life
• 2003 – Monica Bellucci – Remember Me, My Love
• 2004 – Margherita Buy – Caterina in the Big City
• 2005 – Giovanna Mezzogiorno – L'amore ritorna
• 2006 – Angela Finocchiaro – The Beast in the Heart
• 2007 – Ambra Angiolini – Saturn in Opposition
• 2008 – Sabrina Ferilli – Your Whole Life Ahead of You
• 2009 – Francesca Neri – Giovanna's Father

  2010s

• 2010
• 2011 – Carolina Crescentini – ' and 20 sigarette
• 2012 – Michela Cescon – '
• 2013 – Sabrina Ferilli – The Great Beauty
• 2014 – Paola Minaccioni – Fasten Your Seatbelts
• 2015 – Micaela Ramazzotti – An Italian Name
• 2016 – Greta Scarano – Suburra
• 2017
• 2018 – Kasia Smutniak – Loro
• 2019 – Marina Confalone – Il vizio della speranza

  2020s

• 2020 – Valeria Golino – Portrait de la jeune fille en feu and 5 è il numero perfetto