* A. Catrina Bryce * A. Elizabeth Adams * Abby Howe Turner * Abella * Ada Lovelace * Ada Yonath * Adele Goldberg (computer scientist) * Adrienne Mayor * Aglaonike * Agnes Arber * Agnes Fay Morgan Research Award * Agnes Mary Clerke * Agnes Pockels * Agnes Sime Baxter * Agnodice * Aisling Judge * Alejandra Bravo * Alenush Terian * Alessandra Giliani * Alexia Massalin * Alice Ball * Alice Cunningham Fletcher * Alice Eastwood * Alice L. Kibbe * Alice Leigh-Smith * Alice Middleton Boring * Alice Miller (psychologist) * Alice Pegler * Alice Stewart * Alice Y. Ting * Alicia Boole Stott * Allene Jeanes * Allison Randal * Almira Hart Lincoln Phelps * Amalie Dietrich * Amanda Chessell * Ana Aslan * Anat Cohen-Dayag * Andrea Bertozzi * Andrea Brand * Annette D