The best selling album in 2018 in Worldwide was THE GREATEST SHOWMAN by SOUNDTRACK which sold 3,500,000 copies.
| Rank | Artist | Album | Sales | Released |
| 1 | SOUNDTRACK | THE GREATEST SHOWMAN | 3,500,000 | 2017 |
| 2 | BTS (방탄소년단) | LOVE YOURSELF: ANSWER | 2,700,000 | 2018 |
| 3 | BTS (방탄소년단) | LOVE YOURSELF: TEAR | 2,300,000 | 2018 |
| 4 | LADY GAGA & BRADLEY COOPER | A STAR IS BORN (SOUNDTRACK) | 1,900,000 | 2018 |
| 5 | JOHNNY HALLYDAY | MON PAYS C'EST L'AMOUR | 1,700,000 | 2018 |
| 6 | ED SHEERAN | DIVIDE | 1,300,000 | 2017 |
| 7 | QUEEN | BOHEMIAN RHAPSODY (SOUNDTRACK) | 1,200,000 | 2018 |
| 8 | P!NK | BEAUTIFUL TRAUMA | 1,200,000 | 2017 |
| 9 | EMINEM | KAMIKAZE | 1,000,000 | 2018 |
| 10 | SOUNDTRACK | MAMMA MIA! HERE WE GO AGAIN | 900,000 | 2018 |
Source: IFPI Global Music Report