Chytridium

{{short description|Genus of fungi}}

{{Distinguish|text = the protist genus Crithidia}}

{{Automatic taxobox

| image = Die pilze, eine einführung in die kenntnis ihrer formenreihen (1912) (20931573072).jpg

| image_alt =

| image_caption = Chytridium olla

| taxon = Chytridium

| authority = A.Braun, 1851Braun, A. (1851). Betrachtungen über die Erscheinung der Verjüngung in der Natur, insbesondere in der Lebens- und Bildungsgeschichte der Pflanze. Engelmann W, Leipzig (description page 198)

| subdivision_ranks = Species

| subdivision = Many, including:

• Chytridium acuminatum
• Chytridium confervae
• Chytridium elegans
• Chytridium olla

| synonyms =

}}

Chytridium is a genus of fungi in the family Chytridiaceae.

With the culture and characterization of Chytridium olla, the type species of the order, the limits of the Chytridiales were established.{{cite journal | author= Vélez, C.G. | year=2011 | title= Molecular phylogenetic and zoospore ultrastructural analyses of Chytridium olla establish the limits of a monophyletic Chytridiales | journal=Mycologia | volume=103 | pages=118–130 | pmid=20943553| last2= Letcher | first2=P.M. | last3=Schultz | first3=S. | last4= Powell | first4=M.J. | last5=Churchill | first5=P.F. | doi= 10.3852/10-001 | issue= 1| s2cid=36727986 }}

; Names brought to synonymy:

• Chytridium (Olpidium) Braun 1856, a synonym for Olpidium