Constance S. Congdon is an American playwright and librettist. She has won grants and awards from the National Endowment for the Arts, the W. Alton Jones Foundation, and the Guggenheim Foundation, and is the recipient of a 2019 Lilly Award, which recognizes extraordinary women in theatre. In 2021 she was honored with the Legacy Playwrights Initiative Award by the Dramatists Guild Foundation, for her sustained achievement, enduring excellence and influence on the American theater. Congdon was described by Tony Kushner as "one of the best playwrights our country, and our language, has produced."