Naum Natanovich (Nokhim Sanalevich) Meiman (Russian : Нау́м Ната́нович (Но́хим Са́нелевич) Ме́йман, 12 May 1912, Bazar, Ukraine – 31 March 2001, Tel Aviv) was a Soviet mathematician, and dissident. He is known for his work in complex analysis, partial differential equations, and mathematical physics, as well as for his dissident activity, in particular, for being a member of the Moscow Helsinki Group.