Vairimorpha is a genus of microsporidian parasites.

Species include:

• Vairimorpha apis - a parasite of the honey bee,
• Vairimorpha ceranae - a parasite of the honey bee,
• Vairimorpha cheracis - a parasite of the Australian freshwater crayfish, Cherax destructor
• Vairimorpha disparis - a parasite of the moth, Lymantria dispar
• Vairimorpha ephestiae - a parasite of the wax moth, Galleria mellonella
• Vairimorpha hybomitrae - a parasite of gadflies of the genus Hybomitra
• Vairimorpha invictae - a parasite of the fire ant, Solenopsis invicta
• Vairimorpha lymantriae - a parasite of the gypsy moth, Lymantria dispar
• Vairimorpha necatrix - a parasite of several moth species
• Vairimorpha plodiae