Premiata sin dagli esordi con diversi riconoscimenti, ha ottenuto fra i tanti anche nove ARIA Awards ed un MTV Video Music Award. Inoltre è stata nominata a nove Grammy, due BRIT Awards e altrettanti Golden Globe. Alla fine del 2014 era la 97ª persona australiana più ricca sotto la soglia di età dei 40 anni, con un guadagno complessivo di $20 milioni.
Album in studio1997 - OnlySee
2001 - Healing Is Difficult (10th Anniversary Edition)
2001 - Healing is Difficult (10th Anniversary Edition) (Deluxe)
2004 - Colour The Small One
2004 - Colour The Small One (Deluxe Edition)
2008 - Some People Have Real Problems
2010 - We Are Born
2010 - We Are Born (ARIA Awards Edition)
2014 - 1000 Forms of Fear
2014 - 1000 Forms Of Fear (Deluxe Version)
2016 - This Is Acting
2016 - This Is Acting (Deluxe Edition)
2017 - Everyday Is Christmas (Deluxe Edition)
2021 - Music (Songs From And Inspired By The Motion Picture)
2022 - Everyday Is Christmas (Snowman Deluxe Edition)
2024 - Reasonable Woman
Album dal vivo
2007 - Lady Croissant (Live)
2009 - iTunes Live from Sydney
2011 - The We Meaning You Tour (Copenhagen 12.05.2010)
Raccolte
2012 - Best Of
Altri Album
2023 - Gimme Christmas (Lofi Soundscape)
2023 - Gimme Christmas (Sleep Soundscape)
Remixes
2008 - The Girl You lost (Remixes)
2015 - Elastic Heart (The Remixes)
2016 - Cheap Thrills (Remixes)
2021 - Eye To Eye (The Remixes)
2024 - Dance Alone Remixes
Singoli, EP
2000 - Get Me
2005 - Buttons (CSS Remix)
2006 - Clap Your Hands
2008 - Numb Remixes 1
2008 - Numb Remixes 2
2008 - Where I Belong Remixes 1
2008 - Where I Belong Remixes 2
2010 - Bring Night
2010 - Under the Milky Way (Single Version)
2010 - You've Changed
2013 - Elastic Heart (From “The Hunger Games: Catching Fire” Soundtrack)
2014 - You're Never Fully Dressed Without a Smile (2014 Film Version)
2015 - Salted Wound (From "Fifty Shades Of Grey" Soundtrack)
2016 - Angel By The Wings
2016 - Never Give Up (From "Lion" Soundtrack)
2017 - Free Me
2017 - Santa's Coming for Us
2017 - Snowman
2018 - Helium (Sia vs. David Guetta & Afrojack)
2018 - I'm Still Here
2018 - Step By Step (Amazon Original)
2020 - Courage to Change
2020 - Hey Boy
2020 - Original (from Dolittle)
2020 - Riding On My Bike
2020 - Saved My Life
2020 - Together
2020 - Together (F9 Remixes)
2020 - Together (Initial Talk Remix)
2020 - Triple J Live at the Wireless - Big Day out 2011
2021 - 1+1 (Banx & Ranx Remix)
2021 - 1+1 (feat. Amir) (Banx & Ranx Remix)
2021 - 1+1 (feat. Yandel & Sofía Reyes) (Banx & Ranx Remix)
2021 - Floating Through Space
2021 - Floating Through Space (feat. David Guetta) (Hex & Sia In Space Mix)
2021 - Floating Through Space (feat. David Guetta) (Hex Hector’s Roller Jam Mix)
2021 - Floating Through Space (feat. David Guetta) (JIM OUMA Remix)
2021 - Fly Me To The Moon (Inspired By FINAL FANTASY XIV)
2021 - Hey Boy (feat. Burna Boy)
2021 - Hey Boy (The Remixes)
2021 - Snowman (Slowed Down & Snowed In Remix)
2022 - Courage to Change (Michael Calfan Remix)
2022 - Manchild
2022 - Manchild (TOKiMONSTA Remix)
2023 - Gimme Love
2023 - Gimme Love (Reasonable Woman Version)
2023 - Gimme Love (Sentinel Remix)
2023 - Gimme Love (Sped Up Version)
2023 - Titanium (Megan's V3rsion)
2024 - Dance Alone
2024 - Dance Alone (Kito Remix)
2024 - Dance Alone (Ofenbach Remix)
2024 - Fame Won’t Love You (feat. Paris Hilton)
2024 - I Forgive You
2024 - Incredible (feat. Labrinth)
Collaborazioni, Partecipazioni
2002 - Zero 7 - Distractions (feat. Sia)
2006 - Zero 7 - Throw It All Away (feat. Sia)
2007 - Zero 7 - Somersault (feat. Sia)
2011 - David Guetta - Titanium (feat. Sia)
2017 - ZAYN - Dusk Till Dawn (feat. Sia) (Radio Edit)
2017 - ZAYN - Dusk Till Dawn (The Remixes) (feat. Sia)
2018 - David Guetta - Flames (feat. Sia) (Remixes EP)
2018 - David Guetta - Flames (feat. Sia)
2018 - David Guetta & Sia - Flames (Remixes)
2018 - Dolly Parton feat. Sia - Here I Am (from the Dumplin' Original Motion Picture Soundtrack)
2020 - David Guetta & Sia - Let's Love
2020 - David Guetta & Sia - Let's Love (Cesqeaux Remix)
2020 - David Guetta & Sia - Let's Love (David Guetta & MORTEN Future Rave Remix)
2020 - David Guetta & Sia - Let's Love (Robin Schulz Remix)
2020 - kenzie - EXHALE (feat. Sia)
2020 - kenzie - EXHALE (feat. Sia) (Hook N Sling Remix)
2020 - kenzie - EXHALE (feat. Sia) (Pink Panda Remix)
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