Spizellomycetales is an order of fungi in the Chytridiomycetes. Spizellomycetalean chytrids are essentially ubiquitous zoospore-producing fungi found in soils where they decompose pollen. Recently they have also been found in dung and harsh alpine environments, greatly expanding the range of habitats where one can expect to find these fungi. The order includes the following genera:

• Spizellomyces D.J.S. Barr 1980
• Triparticalcar D.J.S. Barr 1980
• Gaertneriomyces D.J.S. Barr 1980
• Geranomyces D.R. Simmons 2011
• Powellomyces Longcore, D.J.S. Barr & Désauln. 1995
• Kochiomyces D.J.S. Barr 1980
• Thoreauomyces Simmons & Longcore 2012
• Fimicolochytrium Simmons & Longcore 2012