| Country | Date | |
|---|---|---|
| USA | 16 June 1960 | (New York City, New York) (premiere) |
| UK | 4 August 1960 | (London) |
| USA | 10 August 1960 | (Los Angeles, California) |
| Brazil | 25 August 1960 | |
| Japan | 4 September 1960 | |
| West Germany | 7 October 1960 | |
| Austria | 28 October 1960 | |
| Sweden | 31 October 1960 | |
| France | 2 November 1960 | |
| Italy | 24 November 1960 | |
| Finland | 2 December 1960 | |
| Netherlands | 23 December 1960 | |
| Poland | 31 December 1960 | |
| Hong Kong | 12 January 1961 | |
| Spain | 2 April 1961 | |
| Denmark | 1 May 1961 | |
| Greece | 1 May 1961 | |
| Uruguay | 18 May 1961 | |
| Spain | 2 August 1971 | (re-release) |
| Hungary | 9 March 1972 | |
| Finland | 27 February 1981 | (re-release) |
| Norway | 28 September 1990 | (re-release) |
| Portugal | 1 May 1998 | (restored version) |
| UK | 31 July 1998 | (re-release) |
| Russia | 5 September 1998 | (re-release) |
| Switzerland | 15 January 1999 | (Zürich) (re-release) |
| Germany | 13 August 1999 | (video premiere) |
| France | 20 October 1999 | (re-release) |
| Spain | 11 July 2006 | (Mostra Internacional de Cinema Gay i Lèsbic de Barcelona) |
| Czech Republic | 15 January 2009 | (limited) |
| Psycho | Austria / Czechoslovakia / Denmark / West Germany |
| Psicosis | Argentina / Spain / Uruguay |
| Psychose | Belgium (French title) / Canada (French title) / France |
| оЯХУ | Soviet Union (Russian title) |
| Psico | Portugal |
| Psicose | Brazil |
| Psicosi | Spain (Catalan title) |
| Psychoza | Poland |
| Psyco | Italy |
| Psyko | Finland |
| Sapik | Turkey (Turkish title) |
| Wimpy | USA (fake working title) |
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