Aa

The genus name Aa may refer to:

  • Animalia:
    • Aa Baker, 1940 = subgenus of Philonesia Sykes, 1900 (Gastropoda, Microcystidae)
    • Aa Hoser, 2025 (Reptilia, Typhlopidae)
  • Plantae:


The taxon authority Aa may refer to:


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