This is a list of the Austrian number-one singles and albums of 2021 as compiled by Ö3 Austria Top 40, the official chart provider of Austria.[1] [2] [3]
| Issue date | Song | Artist | Album | Artist | |
|---|---|---|---|---|---|
| 1 January | No Top 40 released | ||||
| 8 January | "All I Want for Christmas Is You" | Power Up | AC/DC | ||
| 15 January | "7" | Ufo361 and Bonez MC | |||
| 22 January | "Drivers License" | Splitter aus Glück | Daniela Alfinito | ||
| 29 January | Neujahrskonzert 2021 - New Year's Concert | Wiener Philharmoniker/Riccardo Muti | |||
| 5 February | Kvitravn | Wardruna | |||
| 12 February | "Ohne dich" | Kasimir1441 featuring Badmómzjay and Wildbwoys | Eure Mami | Katja Krasavice | |
| 19 February | Medicine at Midnight | Foo Fighters | |||
| 26 February | Peter - Unvergesslich - Seine grössten Hits & Schlager | Peter Alexander | |||
| 5 March | "Madonna" | Aghori | Kool Savas | ||
| 12 March | "Wellerman" | Peter - Unvergesslich - Seine grössten Hits & Schlager | Peter Alexander | ||
| 19 March | When You See Yourself | Kings of Leon | |||
| 26 March | Rot | Ina Regen | |||
| 2 April | Hello! | Maite Kelly | |||
| 9 April | Rot | Ina Regen | |||
| 16 April | Justice | Justin Bieber | |||
| 23 April | "Montero (Call Me by Your Name)" | Ciao! | Giovanni Zarrella | ||
| 30 April | "Wellerman" | Nathan Evans, 220 Kid, Billen Ted | Let the Bad Times Roll | The Offspring | |
| 7 May | Rohdiamant | Samra | |||
| 14 May | Stay High | Ufo361 | |||
| 21 May | Vielleicht irgendwann | Wincent Weiss | |||
| 28 May | Sampler 5 | 187 Strassenbande | |||
| 4 June | "Good 4 U" | Olivia Rodrigo | Aus dem Licht in den Schatten zurück | Kontra K | |
| 11 June | Rap über Hass | K.I.Z | |||
| 18 June | Sour | Olivia Rodrigo | |||
| 25 June | Spring bevor du fällst | Buntspecht | |||
| 2 July | "Beggin'" | Bahama Sunshine | Calimeros | ||
| 9 July | HeimatLiebe | Kastelruther Spatzen | |||
| 16 July | Seelenrausch | Nik P. | |||
| 23 July | Freiheit | Die Amigos | |||
| 30 July | "Zukunft" | Zukunft | RAF Camora | ||
| 6 August | "Blaues Licht" | RAF Camora and Bonez MC | |||
| 13 August | Happier Than Ever | Billie Eilish | |||
| 20 August | "Bad Habits" | Ed Sheeran | |||
| 27 August | "Stay" | The Kid Laroi and Justin Bieber | |||
| 3 September | Sour | Olivia Rodrigo | |||
| 10 September | Donda | Kanye West | |||
| 17 September | Senjutsu | Iron Maiden | |||
| 24 September | "2CB" | Metallica | Metallica | ||
| 1 October | "Stay" | The Kid Laroi and Justin Bieber | Bob Dylan | ||
| 8 October | Dunkel | Die Ärzte | |||
| 15 October | Zukunft | RAF Camora | |||
| 22 October | "Guapa" | RAF Camora | Echt Schlager − Die große Fete − Volume II | Die Grubertaler | |
| 29 October | "Easy on Me" | Rausch | Helene Fischer | ||
| 5 November | |||||
| 12 November | "Shivers" | Ed Sheeran | = | Ed Sheeran | |
| 19 November | Voyage | ABBA | |||
| 26 November | |||||
| 3 December | "Easy on Me" | Adele | 30 | Adele | |
| 10 December | "All I Want for Christmas Is You" | Mariah Carey | |||
| 17 December | Servant of the Mind | Volbeat | |||
| 24 December | Voyage | ABBA | |||
| 31 December | No Top 40 released | ||||