Mary Healy

• Mary [Magdalen Healy], American-Canadian Roman Catholic nun
• Mary Healy (zoologist), American zoologist, CEO and director of the Sacramento Zoo
• Mary Healy (entertainer), American actress, singer, and variety entertainer
• Mary Healy (Mother Gertrude), Australian hospital administrator and member of the Sisters of Charity
• Mary Healy (theologian), Catholic professor and international speaker