FOREVER FAITHLESS - THE GREATEST HITS by FAITHLESS has sold 1,616,000 copies in Belgium, Germany, Ireland, Russia and United Kingdom.
FOREVER FAITHLESS - THE GREATEST HITS certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Belgium |
50,000 | 1x Platinum | 2007 |
Belgium Sales: 50,000
Certification / note: 1x Platinum
Certification Date / sales as of: 2007
|
 Germany |
100,000 | 1x Gold | January 2023 |
Germany Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: January 2023
|
 Ireland |
75,000 | 5x Platinum | 2007 |
Ireland Sales: 75,000
Certification / note: 5x Platinum
Certification Date / sales as of: 2007
|
 Russia |
10,000 | 1x Gold | 2005 |
Russia Sales: 10,000
Certification / note: 1x Gold
Certification Date / sales as of: 2005
|
 United Kingdom |
1,381,000 | 4x Platinum | 22 July, 2013 |
United Kingdom Sales: 1,381,000
Certification / note: 4x Platinum
Certification Date / sales as of: 22 July, 2013
|
| Total sales | 1,616,000 | (in 5 countries) |
Total
Sales: 1,616,000
(in 5 countries)
|
Year-end chart performance for FOREVER FAITHLESS - THE GREATEST HITS
| Chart 2005 | Rank | Sales |
| Belgian Albums (Ultratop Flanders) |
5 | |
| Belgian Albums (Ultratop Wallonia) |
45 | |
 Dutch Albums (Album Top 100) |
38 | |
| Irish Albums (IRMA) |
17 | |
| UK Albums |
11 | 920,000 |
| UK Artist Albums |
10 | 915,000 |
| Chart 2006 | Rank | Sales |
| UK Albums (Charts Plus) |
103 | |
| Chart 2007 | Rank | Sales |
| UK Albums (Charts Plus) |
122 |
Decade-end chart performance for FOREVER FAITHLESS - THE GREATEST HITS
| Chart 2000's | Rank |
| UK Albums (Music Week) |
85 |