橋本渚 (Hashimoto Nagisa) is a former member of Hello Pro Kenshuusei under Hello! Project. She was introduced on November 29, 2014 at the Hello Pro Kenshuusei Happyoukai 2014 ~11gatsu・12gatsu no Nama Tamago Show!~ and completed her training on July 28, 2016.

Prior to joining Hello Pro Kenshuusei, she was a member of NICE GIRL Project! Kenshuusei under NICE GIRL Project!. As a NICE GIRL Project! Kenshuusei member, she was simply known as Nagisa (なぎさ). In January 2018, Hashimoto returned to public eye as a member of Venus, the Yomiuri Giants' cheerleading squad, with her given name written in hiragana (橋本なぎさ). She is now an active teacher at the Giants' dance school.