Gábor Halász (born 25 December 1941, in Budapest) is a Hungarian mathematician.
He is a member of the Hungarian Academy of Sciences.
Since 1985, he is professor at the Faculty of Sciences of the Eötvös Loránd University, Budapest.
With Pál Turán, Halász proved zero density results[1] on the roots of the Riemann zeta function.
He co-invented the Halász–Montgomery inequality[2][3] with Hugh Montgomery.