Leratiomyces is a genus of mushroom-forming basidiomycetes first proposed three times under invalid names,[1][2] and finally validated in 2008.

[3] It includes several formerly described, variously, from the genera Stropharia, Hypholoma, and Weraroa.

The genus name of Leratiomyces is in honour of Auguste Le Rat (1872-1910), who was a French teacher, and in 1904 was the curator of the Museums in Nouméa, New Caledonia.

[4] The genus was circumscribed by Andreas Bresinsky, Manfred Binder, Paul Dennis Bridge, Brian Martin Spooner, Ross Ewen Beever and Duck Chul Park in Mycotaxon vol.103 on page 115 in 2008.

This group includes a number of mushrooms found commonly in woodchip beds and dry grasslands or sandy soils, such as Leratiomyces ceres and L.