Heidi Berndt is a German actress and voice actress known for her extensive work in dubbing, the process of recording replacement voices for foreign-language films and television series for the German market. Her career encompasses a wide range of roles in both animation and live-action productions.

Berndt provided the German voice for the character Olga in the 1985 dubbing of the 1980 Japanese animated science fiction film Phoenix 2772 - Space Firebird. In addition to this prominent anime role, her voice work in animation includes the character of the Mayor in the German version of the children's series Bob the Builder. She also contributed to other animated projects, providing a voice in the German dub of the Unico film and for the character Calimero in the series of the same name.

Beyond animation, Berndt's dubbing career featured a variety of roles in live-action television and film. She lent her voice to Zienia Merton in the science fiction series Space: 1999, known in German as Mondbasis Alpha 1, and to Sally Kellerman in the series Rafferty und die wilden Mädchen. Her film work includes dubbing for Sharon Stone in the 1982 film Auf einmal ist es Liebe and for Marlene Dietrich in a director's cut of the classic film Touch of Evil. Her credits also extend to audio drama productions, such as the role of Lilian Hunter in the German series Dämonenkiller.