| Director: | Donald Crombie |
| Starring: | Peter Cummins |
| Country: | Australia |
| Language: | English |
| Company: | South Australian Film Corporation |
Who Killed Jenny Langby? is a 1974 Australian television documentary directed by Donald Crombie and starring Peter Cummins, Julie Dawson and Anne Deveson.[1] Dawson won the 1974 AACTA Award for Best Actress in a Leading Role.[2]