Johannae may refer to:
Abacetus johannae, species of ground beetle Alvania johannae, species of sea snail Cinnyris johannae, species of bird Coregonus johannae, species of fish Doryfera johannae, species of species of hummingbird Flexiseps johannae, species of skink Frea johannae, species of beetle Gluconacetobacter johannae, species of bacteria Odites johannae, species of moth Pampusana beccarii, species of bird Rasbora johannae, species of fish Tangara johannae, species of bird