Janibacter melonis is a species of Gram positive, aerobic, bacterium.

[1] The species was initially isolated from an abnormally spoiled oriental melon (Cucumis melo).

The optimum growth temperature for J. melonis is 28-35 °C, and can grow in the 15-40 °C range.

[2] J. melonis was isolated from a man's bloodstream after receiving treatment for a facial infection.

The man had been bitten by an unknown insect.