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.

[1] 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.

After the Second World War, he went to Moscow and worked at the Institute for Physical Problems, where he was a head of the mathematics lab.

In 1982, Naum Meiman and Andrei Dmitrievich Sakharov published a letter in defence of Yuri Fyodorovich Orlov.

[2] Meiman also struggled for the right of his wife Inna Meiman-Kitrossky to go to the USA for medical treatment since she had been diagnosed with cancer.