| Maksymilian Horwitz | |
|---|---|
| Born | September 6, 1877 Warsaw, Poland |
| Died | June 22, 1937 (aged 59) Moscow, Russian Empire |
| Nationality | Polish |
| Ethnicity | Jewish |
| Religion | Atheism |
Maksymilian Horwitz (pseudonym: Henryk Walecki; 1877-1937) was a leader and theoretician of the Polish communist movement.
He was a member of the Polish Socialist Party - Left (PPS-Lewica) from 1906 and the Communist Party of Poland (KPP) from 1918 and sat on its Central Committee (1918-20, 1923-24) and politburo (1923-24). Starting from 1921 he was a senior officer of the Communist International, working in Spain, Belgium and Greece. He was arrested by the NKVD on 22 June 1937 and executed.