The world needs your singing, for the language of beauty moves hearts and contributes to the encounter with God.
| I | PARIS | 1947 | (6-13 Jul) | |
| II | ROME | 1949 | (21-25 Apr) | |
| III | ROME | 1951 | (27 Mar-3 Apr) | |
| IV | COLOGNE | 1953 | (6-12 Apr) | |
| V | ROME | 1954 | (18-25 Apr) | |
| VI | PARIS | 1956 | (5-9 Jul) | |
| VII | LOURDES | 1958 | (4-7 Jul) | |
| VIII | ROME | 1960/1961 | (20 Dec- 1 Jan) | |
| IX | COMPOSTELA | 1963 | (4-8 Jul) | |
| X | LORETO-ROME | 1964 | (1-6 Apr) | |
| XI | ROME | 1967 | (6-9 Jul) | |
| XII | GUADALAJARA | 1969/1970 | (27 Dec -1 Jan) | |
| XIII | WÜRZBURG | 1971 | (23-27 Jul) | |
| XIV | HERTOGENBOSCH | 1972 | (5-9 Jul) | |
| XV | ROME | 1975/1976 | (28 Dec-1 Jan) | |
| XVI | LONDON | 1976 | (07-11 Jul) | |
| XVII | TOKYO | 1977 | (7-10 Jul) | |
| XVIII | VIENNA | 1978 | (23-16 Jul) | |
| XIX | MARACAIBO | 1979/1980 | (27 Dec- 1 Jan) | |
| XX | ROME | 1981/1982 | (27 Dec- 1 Jan) | |
| XXI | BRUSSELS | 1982 | (17-22 Jul) | |
| XXII | PARIS | 1985 | (2-7 Jul) | |
| XXIII | ROME | 1988/1989 | (28 Dec- 1 Jan) | |
| XXIV | MAASTRICHT | 1990 | (5-8 Jul) | |
| XXV | SALAMANCA | 1991 | (10-14 Jul) | |
| XXVI | ROME | 1993/1994 | (28 Dec- 1 Jan) | |
| XXVII | MONTREAL | 1995 | (30 Jun -7 Jul) | |
| XXVIII | SALZBURG | 1996 | (10-14 Jul) | |
| XXIX | BARCELONA | 1998 | (7-12 Jul) | |
| XXX | ROME | 1999/2000 | (28 Dec-1 Jan) | |
| XXXI | LYON | 2002 | (10 –15 Jul) | |
| XXXII | COLOGNE | 2004 | (14 – 18 Jul) | |
| XXXIII | ROME | 2005/2006 | (28 Dec – 1 Jan) | |
| XXXIV | CRACOW | 2007 | (10-15 Jul) | |
| XXXV | STOCKHOLM | 2009 | (8-12 Jul) | |
| XXXVI | ROME | 2010/2011 | (28 Dec – 1 Jan) | |
| XXXVII | GRANADA | 2012 | (11-15 Jul) | |
| XXXVIII | WASHINGTON | 2013 | (3-7 VII) | |
| XXXIX | PARIS | 2014 | (9-13 VII) |