Dita Indah Sari (born 30 December 1972) is an Indonesian trade union and socialist activist.

As a human rights campaigner during the Suharto regime, she was sentenced to five years' imprisonment in 1996 on the charge of sedition.

[1] During her imprisonment, she was named a prisoner of conscience by Amnesty International.

[2] After her release in 1999 she was elected Chairperson by the Congress of the National Front for Indonesian Workers Struggle (FNPBI).

[3] Politically she is the leader of the PRD, a socialist party within the broader Papernas alliance.