October 12 marks National Album Day 2019, the second annual celebration of the album format, which has been enjoyed by music fans across the globe for 70 years.(officialcharts.com)
To mark the occasion, Official Charts is revealing the UK's Top 40 biggest studios albums of the 21st Century. The chart, which aired asa special Pick of the Pops on BBC Radio 2 and BBC Sounds between 1pm - 3pm, is based on physical sales, downloads and streams since January 1 2000.
| POS | TITLE | ARTIST | PEAK | YEAR |
| 1 | 21 | ADELE | 1 | 2011 |
| 2 | BACK TO BLACK | AMY WINEHOUSE | 1 | 2006 |
| 3 | 25 | ADELE | 1 | 2015 |
| 4 | X | ED SHEERAN | 1 | 2014 |
| 5 | DIVIDE | ED SHEERAN | 1 | 2017 |
| 6 | BACK TO BEDLAM | JAMES BLUNT | 1 | 2004 |
| 7 | SPIRIT | LEONA LEWIS | 1 | 2007 |
| 8 | CRAZY LOVE | MICHAEL BUBLE | 1 | 2009 |
| 9 | NO ANGEL | DIDO | 1 | 2000 |
| 10 | WHITE LADDER | DAVID GRAY | 1 | 1999 |
| 11 | THE FAME | LADY GAGA | 1 | 2008 |
| 12 | ONLY BY THE NIGHT | KINGS OF LEON | 1 | 2008 |
| 13 | A RUSH OF BLOOD TO THE HEAD | COLDPLAY | 1 | 2002 |
| 14 | CHRISTMAS | MICHAEL BUBLE | 1 | 2011 |
| 15 | LIFE FOR RENT | DIDO | 1 | 2003 |
| 16 | BEAUTIFUL WORLD | TAKE THAT | 1 | 2006 |
| 17 | HOPES AND FEARS | KEANE | 1 | 2004 |
| 18 | X&Y | COLDPLAY | 1 | 2005 |
| 19 | SCISSOR SISTERS | SCISSOR SISTERS | 1 | 2004 |
| 20 | PARACHUTES | COLDPLAY | 1 | 2000 |
| 21 | COME AWAY WITH ME | NORAH JONES | 1 | 2002 |
| 22 | THE MARSHALL MATHERS LP | EMINEM | 1 | 2000 |
| 23 | IN THE LONELY HOUR | SAM SMITH | 1 | 2014 |
| 24 | + | ED SHEERAN | 1 | 2011 |
| 25 | EYES OPEN | SNOW PATROL | 1 | 2006 |
| 26 | 19 | ADELE | 1 | 2008 |
| 27 | OUR VERSION OF EVENTS | EMELI SANDE | 1 | 2012 |
| 28 | SWING WHEN YOU'RE WINNING | ROBBIE WILLIAMS | 1 | 2001 |
| 29 | PROGRESS | TAKE THAT | 1 | 2010 |
| 30 | HOT FUSS | KILLERS | 1 | 2004 |
| 31 | AMERICAN IDIOT | GREEN DAY | 1 | 2004 |
| 32 | THE CIRCUS | TAKE THAT | 1 | 2008 |
| 33 | ROCKFERRY | DUFFY | 1 | 2008 |
| 34 | SING WHEN YOU'RE WINNING | ROBBIE WILLIAMS | 1 | 2000 |
| 35 | BY THE WAY | RED HOT CHILI PEPPERS | 1 | 2002 |
| 36 | SONGS ABOUT JANE | MAROON 5 | 1 | 2003 |
| 37 | ESCAPOLOGY | ROBBIE WILLIAMS | 1 | 2002 |
| 38 | EMPLOYMENT | KAISER CHIEFS | 2 | 2005 |
| 39 | THE GREATEST SHOWMAN | MOTION PICTURE CAST RECORDING | 1 | 2017 |
| 40 | LOUD | RIHANNA | 1 | 2010 |
