Rio Shirai

{{Short description|Japanese swimmer (born 1999)}}

{{Use dmy dates|date=July 2020}}

{{Infobox swimmer

| name = Rio Shirai

| image = Rio Shirai 200215a.jpg

| caption = Shirai in 2020

| fullname =

| nationality =

| strokes = Freestyle

| club =

| collegeteam =

| birth_date = {{birth date and age|1999|9|10|df=yes}}

| birth_place =

| death_date =

| death_place =

| height =

| weight =

| medaltemplates =

{{MedalSport | Women's swimming}}

{{MedalCountry | {{JPN}}}}

{{MedalCompetition | Asian Games}}

{{MedalGold|2018 Jakarta| 4×100 m freestyle}}

{{MedalSilver| 2018 Jakarta |4×200 m freestyle}}

{{MedalSilver|2022 Hangzhou| 4×100 m freestyle}}

{{MedalSilver| 2022 Hangzhou |4×200 m freestyle}}

{{MedalCompetition| Junior Pan Pacific Championships}}

{{MedalGold| 2014 Maui | 200 m backstroke}}

{{MedalSilver| 2014 Maui | 4×100 m medley}}

{{MedalBronze| 2014 Maui | 100 m backstroke}}

{{MedalBronze | 2016 Maui | 4×200 m freestyle}}

| show-medals = yes

}}

{{Nihongo|Rio Shirai|白井 璃緒|Shirai Rio|born 10 September 1999}} is a Japanese swimmer.{{cite web |url=https://en.asiangames2018.id/athletes/athlete/SHIRAI-Rio-3026174/ |title=Rio Shirai |accessdate=19 August 2018 |work=Asian Games 2018}} She competed in the women's 4 × 100 metre freestyle relay event at the 2018 Asian Games, winning the gold medal.{{cite web |url=https://en.asiangames2018.id/sport/swimming/event/swimming-women-4x100m-freestyle-relay/phase/sww411100/ |title=Swimming: Women's 4 x 100m Freestyle Relay |access-date=19 August 2018 |work=Asian Games 2018}}

As a 14-year-old at the 2014 Junior Pan Pacific Swimming Championships in Hawaii, United States, Shirai won the gold medal in the 200 metre backstroke with a 2:11.67, the bronze medal in the 100 metre backstroke with a 1:01.82, and a silver medal in the 4×100 metre medley relay with a final relay time of 4:04.11.Hy-Tek (31 August 2014). [http://www.swmeets.com/Realtime/Jr%20PanPacs/2014/ "Meet Results: 2014 Jr Pan Pacific Swimming Championships"]. swmeets.com. Retrieved 11 November 2022. The following edition, the 2016 Junior Pan Pacific Swimming Championships also held in Hawaii, United States, she won a bronze medal in the 4×200 metre freestyle relay, splitting a 1:59.88 for the fourth leg of the relay to help achieve a final time of 8:08.12.Hy-Tek (27 August 2016). [http://www.swmeets.com/Realtime/Jr%20PanPacs/2016/ "Meet Results: 2016 Jr Pan Pacific Swimming Championships"]. swmeets.com. Retrieved 11 November 2022.