According to Sony Music Canada, MEDUSA by ANNIE LENNOX has sold 6,000,000 copies worldwide. The album sold best in United States (2,000,000 copies), United Kingdom (600,000 copies) and Germany (250,000 copies).
MEDUSA certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Argentina |
30,000 | 1x Gold | 1 March, 1995 |
Argentina Sales: 30,000
Certification / note: 1x Gold
Certification Date / sales as of: 1 March, 1995
|
 Australia |
70,000 | 1x Platinum | DECEMBER 2002 |
Australia Sales: 70,000
Certification / note: 1x Platinum
Certification Date / sales as of: DECEMBER 2002
|
 Austria |
25,000 | 1x Gold | 27 April, 1995 |
Austria Sales: 25,000
Certification / note: 1x Gold
Certification Date / sales as of: 27 April, 1995
|
 Canada |
200,000 | 2x Platinum | 1995 |
Canada Sales: 200,000
Certification / note: 2x Platinum
Certification Date / sales as of: 1995
|
 France |
100,000 | 1x Gold | 7 March, 1995 |
France Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 7 March, 1995
|
 Germany |
250,000 | 1x Gold | 1995 |
Germany Sales: 250,000
Certification / note: 1x Gold
Certification Date / sales as of: 1995
|
 New Zealand |
15,000 | 1x Platinum |
New Zealand Sales: 15,000
Certification / note: 1x Platinum
Certification Date / sales as of:
|
|
 Norway |
25,000 | 1x Gold | 1995 |
Norway Sales: 25,000
Certification / note: 1x Gold
Certification Date / sales as of: 1995
|
 Poland |
50,000 | 1x Gold | 1996 |
Poland Sales: 50,000
Certification / note: 1x Gold
Certification Date / sales as of: 1996
|
 Spain |
50,000 | 1x Gold | 1995 |
Spain Sales: 50,000
Certification / note: 1x Gold
Certification Date / sales as of: 1995
|
 Sweden |
50,000 | 1x Gold | 6 June, 1995 |
Sweden Sales: 50,000
Certification / note: 1x Gold
Certification Date / sales as of: 6 June, 1995
|
 Switzerland |
25,000 | 1x Gold | 1995 |
Switzerland Sales: 25,000
Certification / note: 1x Gold
Certification Date / sales as of: 1995
|
 United Kingdom |
600,000 | 2x Platinum | 1 October, 1995 |
United Kingdom Sales: 600,000
Certification / note: 2x Platinum
Certification Date / sales as of: 1 October, 1995
|
 United States |
2,000,000 | 2x Platinum | 30 June, 1998 |
United States Sales: 2,000,000
Certification / note: 2x Platinum
Certification Date / sales as of: 30 June, 1998
|
 Europe (IFPI) |
2,000,000 | 2x Platinum | 1997 |
Europe (IFPI) Sales: 2,000,000
Certification / note: 2x Platinum
Certification Date / sales as of: 1997
|
| Worldwide sales | 6,000,000 | Sony Music Canada |
Total
Sales: 6,000,000
Source: Sony Music Canada
|
Year-end chart performance for MEDUSA
| Chart 1995 | Rank | Sales |
| Austrian Albums (Ö3 Austria) |
24 | |
 Belgian Albums (Ultratop Flanders) |
60 | |
| Belgian Albums (Ultratop Wallonia) |
17 | |
| Canadian Albums (RPM) |
5 | |
 Dutch Albums (Album Top 100) |
25 | |
 European Albums (Music & Media) |
17 | |
| French Albums (SNEP) |
46 | |
| German Albums (Offizielle Top 100) |
30 | |
| New Zealand Albums (RMNZ) |
30 | |
| Spanish Albums (PROMUSICAE) |
45 | |
| Swedish Albums (Sverigetopplistan) |
56 | |
| Swiss Albums (Schweizer Hitparade) |
26 | |
| UK Albums |
17 | 600,000 |
| UK Artist Albums |
14 | |
| US Albums (Billboard 200) |
50 | |
| US Albums (Soundscan) |
50 | 1,200,000 |
| Chart 2019 | Rank | Sales |
 Portuguese Music DVD (AFP) |
124 |