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Galaxy Stars 2017 was a professional wrestling event promoted by World Wonder Ring Stardom, held on June 21, 2017 at Korakuen Hall in Tokyo, Japan. In the main event, Io Shirai defended the World of Stardom Championship against longtime rival Mayu Iwatani, who hoped to finally defeat Shirai and become a double champion, after recently winning the Wonder of Stardom Championship.

Stardom World is the VOD network for World Wonder Ring Stardom. WWR Stardom is a Japanese women's promotion started in 2011 featuring matches of many varieties including high speed octane action, long brutal brawls, and even costume battle royals. In 2019, the promotion was acquired by Bushiroad and has since become one of the top wrestling promotions in Japan.