- Aars Jon
- Aastrup Peter
- Abbott Richard J.
- Abernethy Katharine
- Abram Paul
- Abzhanov Arkhat
- Adkins-Regan Elizabeth
- Adkins-Regan Elizabeth
- Adriaensen Frank
- Aebischer Adrian
- Afonso Eve
- Afonso Eve
- Agnew Philippa
- Ainley David G.
- Al-Sabi Mohammad Nafi Solaiman
- Alcaraz Gérard
- Alford Lucy
- Alibert Paul
- Alisauskas Ray
- Allaine D.
- Allinne Clementine
- Alonso Bosch Roberto
- Alonso-Alvarez Carlos
- Alonso-Alvarez Carlos
- Alsos Inger Greve
- Alvarado Swanni Tatiana
- Alves José A.
- Amat Isabelle
- Amat Juan A.
- Ambroise Christophe
- Amin Omar
- An Junghwa
- Anderson Cynthia M.
- Andrade Thiago Oliveira
- Andreassen Pipaluk Nynne Skamris
- Andreev Alexandre
- Andreotti Federico
- Angerbjörn Anders
- Anholt Bradley R.
- Anker-Nilssen Tycho
- Anstett Marie-Charlotte
- Aparicio Gallego J.
- Arafah Karim
- Ardia Daniel R.
- Arenas Laura
- Arlettaz Mathilde
- Arnathau C.
- Arnaud Antoine
- Arnoux Emilie
- Aron Serge
- Arranz Silvia E.
- Arruego Xavier
- Artemyev Alexandr V.
- Ashton Paul A.
- Atangana Alain R.
- Athanassiou C.G.
- Atiénzar Francisco
- Attia Sabrine
- Auclair Yannick
- Audant-Lacour Pascaline
- Aury Jean-Marc
- Avarre Jean-Christophe
- Avilés Jesús M.
- Ayala Diego
- Ayala Francisco J.
- Aydoğdu Ali
- Azafzaf Hichem