Template:Synchronizedswimming2016Olympics
| Nation | Team | Duet | Athletes |
|---|---|---|---|
 Argentina |
X | 2 | |
 Australia |
X | X | 9 |
 Austria |
X | 2 | |
 Belarus |
X | 2 | |
 Brazil |
X | X | 9 |
 Canada |
X | 2 | |
 China |
X | X | 9 |
 Colombia |
X | 2 | |
 Czech Republic |
X | 2 | |
 Egypt |
X | X | 9 |
 France |
X | 2 | |
 Great Britain |
X | 2 | |
 Greece |
X | 2 | |
 Israel |
X | 2 | |
 Italy |
X | X | 9 |
 Japan |
X | X | 9 |
 Kazakhstan |
X | 2 | |
 Mexico |
X | 2 | |
 Russia |
X | X | 9 |
 Slovakia |
X | 2 | |
 Spain |
X | 2 | |
 Switzerland |
X | 2 | |
 United States |
X | 2 | |
 Ukraine |
X | X | 9 |
| Total: 24 NOCs | 8 | 48 | 104 |