- Source of Wealth: Publishing
- Age: 90
- Birth Place: The Bronx, New York City, New York, USA
- Marital Status: Widowed (John J. Conheeney)
- Full Name: Mary Theresa Eleanor Higgins Clark Conheeney
- Nationality: American
- Date of Birth: December 24, 1929
- Occupation: Novelist
- Education: Fordham University, New York University, Wood Secretarial School, Villa Maria Academy, Saint Francis Xavier Grammar School
- Children: 5 (Carol, David, Patricia, Marilyn, Warren Jr.)
Mary Higgins Clark is an American author and considered the queen of suspense who has an estimated net worth of $140 million. Mary Theresa Eleanor Higgins Clark Conheeney or simply Mary Higgins Clark is popularly known as a suspense, psychological, and mystery writer. She is among the most accomplished authors in this genre with her books included in The New York Times bestsellers list. These books have also sold more than 100 million copies. In 2011, she was given an advance payment of $64 million for her next five books.
The first novel she wrote was titled Where Are the Children and it was a runaway success. It was even turned into a movie in 1986. But that is not the only one. A Stranger is Watching, Where Are you Now, Remember Me, and The Cradle Will Fall have also been adapted into films, among others. Apart from her thriller novels, Mary has also authored several non-fictional books and books for children. She has also worked as a scriptwriter for radio series. As a child, Mary used to write poems and short plays. In her long career, Mary has won several awards. She is a past President of the Mystery Writers of America and also the Chairman of the International Crime Congress.
Mary Higgins Clark partly owns the New Jersey Jets. Her wealth comes from this football team and also from selling rights of her books to moviemakers and television adaptations. Twenty-two of her novels eventually got screened on television.