According to Allmusic (as of 1966), the soundtrack MY FAIR LADY (ORIGINAL CAST) has sold 6,000,000 copies worldwide. The album sold best in United States (3,000,000 copies), United Kingdom (100,000 copies) and (0 copies).
MY FAIR LADY (ORIGINAL CAST) certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 United Kingdom |
100,000 | 1x Gold | 13 November, 1987 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 13 November, 1987
|
 United States |
3,000,000 | 3x Platinum | 21 November, 1986 |
United States Sales: 3,000,000
Certification / note: 3x Platinum
Certification Date / sales as of: 21 November, 1986
|
| Worldwide sales | 6,000,000 | Allmusic (as of 1966) |
Total
Sales: 6,000,000
Source: Allmusic (as of 1966)
|
Year-end chart performance for MY FAIR LADY (ORIGINAL CAST)
| Chart 1956 | Rank |
| US Albums (Billboard 200) |
2 |
| Chart 1957 | Rank |
| US Albums (Billboard 200) |
1 |
| Chart 1958 | Rank |
| UK Albums (Official Charts) |
1 |
| US Albums (Billboard 200) |
1 |
| Chart 1959 | Rank |
| UK Albums (Official Charts) |
3 |
| Chart 1961 | Rank |
| US Mono Albums (Billboard 200) |
42 |
| US Stereo Albums (Billboard 200) |
14 |
| Chart 1962 | Rank |
| US Mono Albums (Billboard 200) |
12 |
Decade-end chart performance for MY FAIR LADY (ORIGINAL CAST)
| Chart 1950's | Rank |
| UK Albums (Official Charts) |
2 |