Susan Kathryn Appleby (born 21 December 1970) is a former English female rugby union player. She represented at the 1998 and 2002 Women's Rugby World Cup. She was an assistant coach for the England Women's sevens.
She was a police officer, and was, most recently, Head Coach of Exeter Chief's Women, a role from which she departed in 2025 after her contract was not renewed.
She was a runner-up on '