ON THROUGH THE NIGHT by DEF LEPPARD has sold 1,100,000 copies in Canada and United States.
ON THROUGH THE NIGHT certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Canada |
100,000 | 1x Platinum | 1991 |
Canada Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1991
|
 United States |
1,000,000 | 1x Platinum | 9 May, 1989 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 9 May, 1989
|
| Total sales | 1,100,000 | (in 2 countries) |
Total
Sales: 1,100,000
(in 2 countries)
|