| Country | Date | |
|---|---|---|
| USA | 21 October 1964 | (New York City, New York) (premiere) |
| USA | 28 October 1964 | (Los Angeles, California) (premiere) |
| Australia | 9 December 1964 | (Melbourne) (premiere) |
| France | 23 December 1964 | |
| Italy | 23 December 1964 | |
| Spain | 23 December 1964 | |
| West Germany | 23 December 1964 | |
| Finland | 25 December 1964 | |
| USA | 25 December 1964 | |
| Denmark | 26 December 1964 | |
| Japan | 26 December 1964 | |
| Sweden | 27 December 1964 | |
| UK | 21 January 1965 | |
| Hong Kong | 22 April 1965 | |
| Australia | 28 July 1965 | (Sydney) (premiere) |
| Finland | 3 June 1977 | (re-release) |
| USA | 23 September 1994 | (re-release) |
| Australia | 23 February 1995 | (re-release) |
| Japan | 30 December 2000 | (re-release) |
| My Fair Lady | Czechoslovakia (Czech title) / Denmark / Finland / Spain |
| Mi bella dama | Argentina / Spain (original subtitled version) |
| Benim tatli melegim | Turkey (Turkish title) |
| Minha Bela Dama | Brazil |
| Minha Linda Lady | Portugal |
| Oraia mou kyria | Greece |
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