Dieunomia nevadensis, the Nevada nomia, is a species of sweat bee in the family Halictidae.

[2] These five subspecies belong to the species Dieunomia nevadensis:[2] The subspecies Dieunomia nevadensis arizonensis is found in the southwestern and western United States and Mexico, and is easily distinguished by its extensively red abdomen.

[7] Dieunomia nevadensis bakeri is about 2 mm longer than general Dieunomia nevadensis and is more robust; it has a black instead of yellowish-red abdomen, coarser punctures in the mesothorax, and less red tubercules.

[7] The range of Dieunomia nevadensis bakeri extends eastward up to Texas, Florida, and North Carolina; westward as far as Colorado and Wyoming; and northward as far as Illinois.

[5] Its range overlaps to an extent with that of Dieunomia nevadensis arizonensis.