Leioproctus carinatifrons is a species of Australian bee.

It is found in coastal regions of New South Wales, Victoria and South Australia, and feeds on the nectar of various species of Persoonia.

[2] It was first described in 1929 by T. D. A. Cockerell as Paracolletes carinatifrons.

[2] Males are around 10 millimetres (0.39 in) long, and females 7 mm (0.28 in).

[1] It is closely related to L. perpolitus from Western Australia