There are 6 mathematicians whose last name begin with CRY.

Cryan, Mary University of Warwick 2000
Cryer, Colin University of Cambridge 1963
Cryer, Jonathan The University of North Carolina at Chapel Hill 1966
Cryer, Steven Cornell University 1990
Cryssaff, Lhaylla Pontifícia Universidade Católica do Rio de Janeiro 2009
Crystal, Thomas Massachusetts Institute of Technology 1966