| Belarusian Socialist Assembly | |
| Native Name: | Беларуская сацыялістычная грамада |
| Native Name Lang: | be |
| Colorcode: | red |
| Abbr: | --> |
| Chairman: | --> |
| Spokesman: | --> |
| Founders: | --> |
| Legalized: | --> |
| Headquarters: | Minsk |
| Membership Year: | 1917 |
| Membership: | 10,000 |
| Position: | Centre-left |
| Regional Affiliation: | --> |
| Continental Affiliation: | --> |
| Colours: | --> |
| Seats11 Title: | --> |
| Seats11: | --> |
| Country: | --> |
| Country: | Belarus |
The Belarusian Socialist Assembly, BSA (Belarusian: Беларуская сацыялістычная грамада|translit=Bielaruskaja sacyjalistyčnaja hramada, BSH) was a revolutionary party in the Belarusian territory of the Russian Empire. It was established in 1902 as the Belarusian Revolutionary Party, renamed in 1903.[1]
The BSA had branches in Minsk, Vilnius and Saint Petersburg. After the February Revolution in Russia, the political activity in Belarus increased, and in summer of 1917 the BSA gave rise to the Communist Party of Byelorussia,, and the .
On March 19, 1918, on the initiative of the BSA, the Rada of the Belarusian Democratic Republic became a temporary, short-lived parliament in the Belarusian Democratic Republic. Most of the BNR Council were members of the BSA.
Russian Bolsheviks had a negative attitude towards the BSA. Vladimir Lenin described BSA as a "nationalist petite bourgeoisie party of left-populist orientation".[2] The 2nd Congress of the Soviets of the Western Province (Russia) declared the Council of the Belarusian People's Republic counter-revolutionary and anti-Soviet.[1]
After the Polish-Soviet War, many activists of the BSA have found themselves in Poland, which acquired Western Belarus, and they struggled for the Belarusian autonomy.[1]