Heini Halberstam (11 September 1926 – 25 January 2014[1]) was a Czech-born British mathematician, working in the field of analytic number theory.

[2] Halberstam was born in Most, Czechoslovakia and died in Champaign, Illinois, US.

After Adolf Hitler's annexation of the Sudetenland, he and his mother moved to Prague.

At the age of twelve, as the Nazi occupation progressed, he was one of the 669 children saved by Sir Nicholas Winton, who organized the Kindertransport, a train that allowed those children to leave Nazi-occupied territory.

[3] He obtained his PhD in 1952, from University College, London, under the supervision of Theodor Estermann.