| Country | Date | |
|---|---|---|
| France | 25 October 1967 | |
| Italy | 29 February 1968 | |
| West Germany | 13 June 1968 | |
| Finland | 14 February 1969 | |
| UK | 1971 | |
| USA | 12 July 1972 | (New York City, New York) |
| East Germany | 26 January 1983 | (TV premiere) |
| UK | 27 August 1993 | (re-release) |
| Australia | 5 May 1994 | (re-release) |
| USA | 1 March 1997 | (re-release) |
| Spain | 7 July 2000 | |
| Hong Kong | 13 February 2005 | (HK Film Archive Series) |
| Hong Kong | 5 May 2005 | (Le French May Film Festival of Hong Kong) |
| Argentina | 9 November 2008 | (Mar del Plata Film Festival) |
| Samuraj | Poland / Serbia |
| A szamuráj | Hungary |
| Ajojahti | Finland |
| Der eiskalte Engel | West Germany |
| Ekspert i drab | Denmark |
| El samurai | Argentina (festival title) |
| El silencio de un hombre | Spain |
| Frank Costello, faccia d'angelo | Italy |
| Kiralik katil | Turkey (Turkish title) |
| O Ofício de Matar | Portugal |
| O Samurai | Brazil |
| Samuraj killer | Sweden |
| The Godson | USA |
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