Teratosphaeria is a genus of fungi in the family Teratosphaeriaceae; according to the 2007 Outline of Ascomycota, it was placed in the Phaeosphaeriaceae, but the placement within this family was uncertain. It was confirmed in 2020, within Teratosphaeriaceae by Wijayawardene et al. 2020.

Species Teratosphaeria zuluensis (formerly Coniothyrium zuluense) is found on Eucalyptus camaldulensis in Ethiopia causing stem cankers.

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