Isabella Smith Andrews (née Young; 2 November 1905 – 19 June 1990), known professionally as Isobel Andrews, was a Scottish-born New Zealand playwright, novelist, short-story writer and poet. She wrote over sixty plays, many of which were published, and was associated with the New Zealand branch of the British Drama League. She won the League's annual playwrighting competition four times. Her plays, particularly The Willing Horse, have continued to be performed into the 21st century.