The Chaetothyriales are an order of ascomycetous fungi in the class Eurotiomycetes and within the subclass Chaetothyriomycetidae.

[1] The order was circumscribed in 1987 by mycologist Margaret Elizabeth Barr-Bigelow.

[2] As of October 2021[update], Species Fungorum includes 9 families, 97 genera, and 691 species in the Chaetothyriales.

[3] The following list shows the families, genera, and number of species in the Chaetothyriales, adapted from a recent (2020) taxonomic and nomenclatural review of the order.

[4] Several genera have been included in the Chaetothyriales although their familial placement is unknown.