Azerbaijan didn’t yet have a gymnastics program following the dissolution of the Soviet Union, so the Azeri gymnast Valery Belenky competed as an unattached Azeri athlete at worlds in 1993. With no plans to create a program at that time, he opted to become a German citizen and began representing Germany in 1994.

The nation of Czechoslovakia was first known as Bohemia, and it competed at world championships as Bohemia through 1913 before being reconfigured as Czechoslovakia following World War I. After 1993, Czechoslovakia broke up into the two separate nations of the Czech Republic and Slovakia.

During the Cold War, Germany split into East Germany and West Germany and competed at world championships as these two separate nations from 1958 through 1989 before reuniting in 1991.

Iraq sent individual specialists to compete at 2018 world championships, but they did not make any apparatus finals and are unranked in the all-around and as a team.

Nigeria sent individual specialists to compete at 2019 world championships, but did not make any apparatus finals and they are unranked in the all-around and as a team.

Austria-Hungary competed at world championships in 1909 and 1911. Following World War I, the Balkan territories formerly part of the empire became known as Yugoslavia, and the FIG recognizes any medals earned by the Austro-Hungarian Empire as belonging to Yugoslavia. The new nation existed as such until it dissolved into multiple independent nations in 1992, though Serbia and Montenegro continued competing as the joint Federal Republic of Yugoslavia until they too became independent in 2002.