John O'Connor is a common name that may refer to various individuals across different fields. One notable John O'Connor was an American lawyer and politician who served as the Attorney General of New York from 1979 to 1981. He was known for his work in public service and legal reform. Another prominent John O'Connor was a celebrated Irish author and playwright, recognized for his contributions to literature. His works often explored themes of identity and culture, reflecting the complexities of Irish society. Both individuals have made significant impacts in their respective areas.