The Bolivian National Congress 1989–1993 was elected on 7 May 1989.
Chamber of Senators
MNR – Revolutionary Nationalist Movement
PDB – Bolivian Democratic Party
PCML (d) – Communist Party of Bolivia (Marxist–Leninist) (dissidents)
MNRI-Siglo XX – Leftwing Revolutionary Nationalist Movement - 20th Century
PS-Aponte – Socialist Party-Guillermo Aponte Burela
AND – Nationalist Democratic Action
PDC – Christian Democratic Party
MIR – Revolutionary Left Movement
PCML – Communist Party of Bolivia (Marxist–Leninist)
MNR-V – Revolutionary Nationalist Movement-Vanguard
IU – United Left
MIR-BL – Revolutionary Left Movement- Free Bolivia
PCB – Communist Party of Bolivia
POR-U – Revolutionary Workers' Party-Unified
PS-1-Velasco – Socialist Party-One-Ramiro Velasco Romero
CONDEPA – Conscience of Fatherland