Ayumu Hirano (平野 歩夢, Hirano Ayumu, born 29 November 1998) is a Japanese competitive snowboarder. He won the silver medal in the superpipe in 2013 Winter X Games XVI at the age of 14, becoming the youngest medalist in X games history, and won silver medals in the halfpipe at both the 2014 Winter Olympics in Sochi and the 2018 Winter Olympics in Pyeongchang.
Ayumu Hirano was born and raised in a small coastal city called Murakami in Niigata Prefecture situated in a rather snowy area in Japan. His mother named him Ayumu (歩夢), which literally means "walk the dream" (歩＝walk, 夢＝dream), wishing him to become a person who would know the joy of pursuing a dream and the perseverance to make it come true. His father, Hidenori, was a surfer who eventually opened a surf shop, and later made a skate park (Nihonkai Skate Park) from scratch in his hometown of Murakami. The father originally hoped his son, Ayumu, to become a surfer, but the son did not like it much. Instead, he got absorbed in skateboarding, following the footstep of his 3 year-older brother, Eiju. He started skateboarding at the age of 4, and the snowboarding half a year later. He said he did not even remember how he started as he was too young and as it was just so natural for him. He belonged to the skateboarding team "e-Yume Kids" (meaning team "great dream kids") at Nihonkai Skate Park and joined skateboarding competitions. As there was not a Halfpipe near their hometown, his father often had to drive Hirano all the way to Yokone ski resort in Yamagata prefecture, where there was the first official permanent Halfpipe in Japan, which, however, is 4 meters narrower than the world standard halfpipe. Burton, one of the leading snowboarding brands, has been sponsoring Hirano since he was a 4th grader.