Arina Kachan (born 5 March 1994) is a Belarusian judoka, who has been ranked number one in the world in the women's + 70 kg weight class.

Initially in the under 70 kg weight class, she won a bronze medal at the International Blind Sports Federation World Games in Antalya, Turkey in 2011 and at the IBSA European Judo Championships in Crawley, England, also in that year.

She was called up to the Belarus team for the 2012 Summer Paralympics in London, England, where she finished fifth after losing in a bronze medal match.

[1] In 2014, Arina Kachan won a bronze medal in the women's + 70 kg weight class at the IBSA Judo World Championships held in Colorado, United States.

[1] At the 2015 IBSA World Games in Seoul, South Korea, Kachan was defeated by Russian judoka Irina Kalyanova in the final, only winning the silver medal.