H. laeta may refer to:
Hamataliwa laeta, a Mexican spider Haworthia laeta, a succulent plant Heteropsis laeta, a Malagasy butterfly Heterosternuta laeta, a predaceous diving beetle Himerarctia laeta, a Brazilian moth Histopona laeta, a funnel-web spider Holomelina laeta, a Northern American moth Hydnochaete laeta, a plant pathogen Hypercompe laeta, a Venezuelan moth Hypoestes laeta, a dicotyledonous plant