- A Seychellois, B.O.Y.
- Aalto, Ida-Maria
- Abbott, William Louis
- Abdulali, Humayun
- Abercromby, G.A.
- Abernethy, O.
- Aboulafia, L.R.
- Abraham, Sarah
- Abrahams, N.
- Acker A, Van den
- Aconibe
- Adam, Etzion
- Adam, J.
- Adel, A.
- Adjei
- Adrian
- Afr, Talcott Williams
- Ahuja, S.R.
- Ailanjian, M.
- Aitkin, J.K.
- Akeley, Carl E.
- Akeley, C.E.
- Akeley, Carl Ethan
- Akker, S.
- Akker, W.G.
- Akoth, Beryl
- Akoth, Berlyl
- Akoth, C.
- Al-Badry, K.
- Al-Safadi, M.
- Albany
- Albaret, Jean-Louis
- Albe, Monica J.
- Albignac
- Albignac, R.
- Albrecht, C.J.
- Alexander, Annie M.
- Alison, R.
- Allard, Vincent
- Allen, G.M.
- Allen, Katie
- Allen, Glover M.
- Allison, A.
- Allman, Verl
- Alluaud
- Alluaud, Charles
- Alon, A.
- Alon
- Alon, Azarya
- Alosa
- Alosa-Niefang
- Alpert, Gary D.
- Amer
- Ami, Lazar
- Amir, Arnon
- Andersen
- Anderson, J.
- Anderson, S.C.
- Anderson, C.V.
- Anderson, Jerome
- Anderson, R.
- Anderson, Bruce
- Anderson, A.
- Anderson, A.B.
- Andohahela, N.P.
- Andreone, Franco
- Andrew, Stevens R.
- Andrew Williams, A. L. Archer
- André
- Anduini
- Anema, L.
- Angel, Fernand
- Annelies, Hofman
- Ansorge
- Ansorge, W.J.