Olympic Games

Summer

Edition Officially opened by
1896 Georgios I, King of Greece (King)
1904 David Francis (President, Louisiana Purchase International Exposition)
1908 Edward VII, King of the United Kingdom (King)
1912 Gustav V, King of Sweden (King)
1920 Albert I, King of Belgium (King)
1924 Gaston Doumergue (President)
1928 Hendrik van Mecklenburg-Schwerin (His Royal Highness Prince)
1932 Charles Curtis (Vice-President)
1936 Adolf Hitler (Chancellor)
1948 George VI, King of the United Kingdom (King)
1952 Juho Kusti Paasikivi (President)
1956 Philip, Duke of Edinburgh (His Royal Highness)
1960 Giovanni Gronchi (President)
1964 Hirohito, Emperor of Japan (Emperor)
1968 Gustavo Díaz Ordaz (President)
1972 Gustav Heinemann (President)
1976 Elizabeth II, Queen of the United Kingdom (Queen)
1980 Leonid Brezhnev (President)
1984 Ronald Reagan (President)
1988 Roh Tae-Woo (President)
1992 Juan Carlos, Crown Prince de Borbón (King)
1996 Bill Clinton (President)
2000 William Deane (Governor-General)
2004 Konstantinos Stephanopoulos (President)
2008 Hu Jintao (President)
2012 Elizabeth II, Queen of the United Kingdom (Queen)
2016 Michel Temer (Acting president)

Winter

Edition Officially opened by
1924 Gaston Vidal (Under-Secretary for Physical Education)
1928 Edmund Schulthess (President)
1932 Franklin D. Roosevelt (Governor)
1936 Adolf Hitler (Chancellor)
1948 Enrico Celio (President)
1952 Ragnhild, Princess of Norway (Her Royal Highness Princess)
1956 Giovanni Gronchi (President)
1960 Richard Nixon (Vice-President)
1964 Adolf Schärf (President Dr.)
1968 Charles de Gaulle (President)
1972 Hirohito, Emperor of Japan (Emperor)
1976 Rudolf Kirchschläger (President Dr.)
1980 Walter Mondale (Vice-President)
1984 Mika Špiljak (President)
1988 Jeanne Sauvé (Governor-General)
1992 François Mitterrand (President)
1994 Crown Prince Harald (King)
1998 Akihito, Emperor of Japan (Emperor)
2002 George W. Bush (President)
2006 Carlo Azeglio Ciampi (President)
2010 Michaëlle Jean (Governor-General)
2014 Vladimir Putin (President)
2018 Mun Jae-In (President)

Equestrian

Edition Officially opened by
1956 Gustaf VI Adolf, King of Sweden (King)

Intercalated Games

Edition Officially opened by
1906 Georgios I, King of Greece (King)

Youth Olympic Games

Summer

Edition Officially opened by
2010 S. R. Nathan (President)
2014 Xi Jinping (President)
2018 Mauricio Macri (President)

Winter

Edition Officially opened by
2012 Heinz Fischer (President)
2016 Crown Prince Harald (King)