Parliamentary elections were held in Bolivia in May 1942 to elect members of the National Congress.
| Party | Votes | % | Seats | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Chamber | Senate | |||||||||
| Elected | Total | +/– | Elected | Total | +/– | |||||
| bgcolor= | Liberal Party | 25 | +4 | 9 | 0 | |||||
| bgcolor= | United Socialist Party | 22 | +4 | 4 | 0 | |||||
| bgcolor= | Socialist Republican Party | 20 | +8 | 11 | 0 | |||||
| bgcolor= | Genuine Republican Party | 13 | –4 | 3 | 0 | |||||
| bgcolor= | Revolutionary Left Party | 6 | New | 0 | 0 | New | ||||
| bgcolor= | Revolutionary Nationalist Movement | 5 | New | 0 | 0 | New | ||||
| bgcolor= | MNR Independents | 5 | New | 0 | 0 | New | ||||
| bgcolor=black | Workers Socialist Party of Bolivia | 1 | 0 | 0 | 0 | 0 | ||||
| bgcolor=darksalmon | Workers' Party of Tarija | 1 | New | 0 | 0 | New | ||||
| bgcolor= | PSU Independents | 1 | New | 0 | 0 | New | ||||
| bgcolor= | PIR Independents | 1 | New | 0 | 0 | New | ||||
| bgcolor= | FSB Independents | 1 | 0 | 0 | 0 | 0 | ||||
| bgcolor=grey | Independents | 9 | –10 | 0 | 0 | 0 | ||||
| align=left colspan=2 | Total | 56 | 110 | +1 | 9 | 27 | 0 | |||
| align=left colspan=10 | Source: Bustillos et al.[1] | |||||||||