| Iris Sing | |
| Birth Place: | Rio de Janeiro, Brazil |
| Sport: | Taekwondo |
| Height: | 167 cm |
| Headercolor: | lightsteelblue |
| Show-Medals: | yes |
Iris Silva Tang Sing (born August 21, 1990) is a taekwondo competitor from Brazil. She won bronze medals at the world championships and at the Pan American Games in 2015, and qualified for the 2016 Summer Olympics in the 49 kg division.