Reira Iwabuchi

{{short description|Japanese snowboarder (born 2001)}}

{{Use dmy dates|date=January 2018}}

{{Infobox sportsperson

| headercolor =

| native_name = 岩渕 麗楽

| native_name_lang = jp

| name = Reira Iwabuchi

| nickname =

| image =

| caption =

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| birth_date = {{birth date and age|df=yes|2001|12|14}}

| birth_place =

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| country = {{JPN}}

| sport = Snowboarding

| event = Slopestyle, Big air

| alma_mater =

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| height = 4'11"

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| medaltemplates = {{MedalSport|Women's snowboarding}}

{{MedalCountry| {{JPN}} }}

{{Medal|Competition|World Championships}}

{{Medal|Silver|2025 Engadin|Big air}}

{{Medal|Bronze|2025 Engadin|Slopestyle}}

{{MedalCompetition|Winter X Games}}

{{Medal|Gold|2023 Aspen|Big air}}

{{MedalSilver|2018 Aspen |Big air}}

{{MedalBronze|2020 Aspen|Big air}}

}}

{{nihongo|Reira Iwabuchi|岩渕 麗楽|Iwabuchi Reira|born 14 December 2001}} is a Japanese snowboarder. She won a silver medal in big air at Winter X Games XXII.{{cite web|url=http://xgames.espn.com/xgames/events/2018/aspen/results/401005591/women-snowboard-big-air|title=Aspen 2018 Women's Snowboard Big Air|publisher=|accessdate=29 January 2018}}

At the 2023 X Games, she became the first female to land a triple underflip in competition. She did so while competing in women’s snowboard big air, and won a gold medal in it.{{Cite web|url=https://www.aspentimes.com/sports/iwabuchi-lands-triple-underfoot-to-make-big-air-history/|title=Japan’s Iwabuchi lands triple underfoot to make women’s big air history|first=Audrey|last=Ryan|website=www.aspentimes.com}}