Mother of Diana and Minnie May. Mrs. Barry has a severe personality, expecting her children to follow strict and sometimes unreasonable rules. She's quick to condemn Anne for mistakes (such as accidentally getting Diana drunk). (After the "raspberry cordial" incident, Mrs. Barry won't let Anne speak to Diana until Anne finally redeems herself by saving Minnie May.)

She isn't named in the original book series or the 1979 anime. She is named Eliza in the 2025 anime.