The Estonian Independent Socialist Workers' Party (Estonian: Eesti Iseseisev Sotsialistlik Tööliste Partei, EISTP) was a political party in Estonia.
[1] It contested the Constituent Assembly elections in 1919 as Socialists-Revolutionaries, winning seven seats.
[2] The 1920 elections saw the EISTP win 11 of the 100 seats in the Riigikogu.
The May 1923 elections saw the radicalised party reduced to five seats.
[3] The EISTP was renamed the "Working People's Party" (Eestimaa töörahva partei) and became a front for the banned Communists.