Vegetable Duck is a 1944 detective novel by John Rhode, the pen name of the British writer Cecil Street.

[1] It is the fortieth in his long-running series of novels featuring Lancelot Priestley, a Golden Age armchair detective.

The title refers to a dish including a Marrow stuffed with minced beef, which features in the plot.

It was published in America by Dodd Mead under the alternative title Too Many Suspects.

[2] At the London service flat where she lives with her husband, dies after eating a meal which later analysis shows was infused with digitalis.