Chang Si

{{short description|Chinese synchronized swimmer}}

{{Infobox swimmer

|name=Chang Si

|strokes=Synchronized swimming

|birth_date={{birth date and age|1986|11|15|df=y}}

|birth_place=Beijing, China

|height=1.70 m{{cite web|title=Chang Si Bio, Stats, and Results|url=https://www.sports-reference.com/olympics/athletes/ch/chang-si-1.html|archive-url=https://web.archive.org/web/20200418064446/https://www.sports-reference.com/olympics/athletes/ch/chang-si-1.html|url-status=dead|archive-date=2020-04-18|publisher=sports-reference}}

|weight=56 kg

|show-medals=no

|medaltemplates=

{{MedalCountry | {{CHN}} }}

{{MedalSport | Women's Synchronized swimming}}

{{MedalCompetition|Olympic Games}}

{{MedalSilver| 2012 London | Team }}

{{MedalCompetition|World Championships}}

{{MedalSilver|2011 Shanghai|Team technical}}

{{MedalSilver|2011 Shanghai|Free combination}}

{{MedalSilver|2011 Shanghai|Team free}}

{{MedalCompetition | Asian Games }}

{{MedalGold | 2010 Guangzhou | Team}}

{{MedalGold | 2010 Guangzhou | Combination}}

}}

{{family name hatnote|Chang|lang=Chinese}}

Chang Si ({{zh|c=常思|p=Cháng Sī}}; November 15, 1986) is a Chinese retired competitor in synchronized swimming. She won a silver medal in team competition at the 2012 Summer Olympics.{{cite web|url=http://www.london2012.com/news/articles/russia-retain-team-title.html|title=Russia retain Team Synchronised Swimming title|date=August 10, 2012|publisher=London2012.com|accessdate=August 10, 2012|archive-date=August 23, 2012|archive-url=https://web.archive.org/web/20120823114407/http://www.london2012.com/news/articles/russia-retain-team-title.html|url-status=dead}}

Chang Si's paternal grandfather Chang Baohua was a famous comedian.{{cite web|url=http://www.sohu.com/a/20106374_114098|title=常宝华携孙子常远 孙女常思做客春妮家|language=zh|trans-title=Chang Baohua along with grandson Chang Yuan and granddaughter Chang Si Pay a Visit to Chunni's Home|author=Chunni's Weekend Show|website=Sohu|date=2015-06-25}}