Geraldine Aizenberg (born 31 January 1978) is an Argentine former professional tennis player. Aizenberg reached a best singles ranking of 180 in the world.
One of her best performances was a runner-up finish at the $50,000 Jakarta ITF tournament in 1997.
She took part in the qualifying draw for the 1998 US Open.As a doubles player, Aizenberg won five titles on the ITF circuit.
In 1998 she appeared in the main draw of WTA Tour tournaments in Maria Lankowitz, Palermo and Sopot.