Alexandre Gaydamak (Russian: ????) (born ??date?? in ??place??) is a Russian businessman, and member of the wealthy Gaydamak family. He is the son of Arcadi Gaydamak.

He spent his childhood split between Russia, Israel and France.

In January 2006 he announced he was following his father into association football (soccer) club ownership with the acquisition of English club Portsmouth F.C. from Milan Mandaric. His father owns Israeli side Beitar Jerusalem FC.

Gaydamak is also patron of several Jewish charities.