Koby Owusu Arthur (born 31 January 1996) is a Ghanaian professional footballer who last played for League Two club Macclesfield Town.
A midfielder who can also play as a forward, he made his Football League debut in the Championship with Birmingham City in April 2013. He spent time on loan at Conference Premier club Lincoln City and in two spells with League Two club Cheltenham Town, for whom he scored his first senior goal, and was released by Birmingham in 2017.