| Country: | Argentina |
| Previous Election: | 1936 |
| Next Election: | 1940 |
| Election Date: | 6 March 1938 |
| Election Name: | 1938 Argentine legislative election |
| Seats For Election: | 81 of 158 seats in the National Congress |
| Ongoing: | no |
| Turnout: | 68.26% |
| Noleader: | yes |
| Party1: | Concordance |
| Colour1: |
|
| Percentage1: | 61.64% |
| Seats1: | 52 |
| Last Election1: | 36 |
| Party2: | Radical Civic Union |
| Colour2: |
|
| Percentage2: | 25.80% |
| Seats2: | 27 |
| Last Election2: | 39 |
| Party3: | Tucumán Radical Civic Union |
| Colour3: |
|
| Percentage3: | 2.41% |
| Seats3: | 2 |
| Last Election3: | 3 |
| Map: | Elecciones legislativas de Argentina de 1938 - Resultados por distrito.svg |
| Map Upright: | 2 |
Legislative elections were held in Argentina on 6 March 1938. Voter turnout was 68%.
| Party | Votes | % | Seats won | Total seats | ||
|---|---|---|---|---|---|---|
| bgcolor=#bfd0da rowspan=15 | Total Concordance | 1,080,026 | 61.64 | 52 | 83 | |
| National Democratic Party (PDN) | 599,751 | 34.23 | 26 | 57 | ||
| Santa Fe Radical Civic Union (UCR-SF) | 157,958 | 9.02 | 6 | 9 | ||
| Concordance | 156,325 | 8.92 | 10 | — | ||
| Antipersonalist Radical Civic Union (UCR-A) | 34,280 | 1.96 | 1 | 9 | ||
| Unified Radical Party (PRU) | 36,468 | 2.08 | 2 | 2 | ||
| Reorganized National Democratic Party (PDN) | 22,936 | 1.31 | 2 | — | ||
| Unified Radical Civic Union (UCR-U) | 22,751 | 1.30 | 1 | 3 | ||
| Liberal Party of Corrientes (PLCo) | 16,646 | 0.95 | — | 1 | ||
| Popular Party of Jujuy | 11,700 | 0.67 | 2 | 2 | ||
| Salta Radical Civic Union | 9,328 | 0.53 | 1 | — | ||
| Buenos Aires Province Radical Civic Union | 6,375 | 0.36 | — | — | ||
| San Juan Radical Civic Union | 4,522 | 0.26 | 1 | — | ||
| Blockist Radical Civic Union (UCR-B) | 966 | 0.06 | — | — | ||
| Impersonalist Radical Civic Union | 20 | 0.00 | — | — | ||
| Radical Civic Union (UCR) | 452,025 | 25.80 | 27 | 65 | ||
| Socialist Party (PS) | 99,291 | 5.67 | — | 5 | ||
| Tucumán Radical Civic Union | 42,312 | 2.41 | 2 | 5 | ||
| Socialist Workers' Party (PSO) | 26,530 | 1.51 | — | — | ||
| Labour Gathering Party (CO) | 13,859 | 0.79 | — | — | ||
| Servants of the State | 8,550 | 0.49 | — | — | ||
| Independent Democratic Party | 8,158 | 0.47 | — | — | ||
| Radical Civic Union - Opposition Block | 6,785 | 0.39 | — | — | ||
| Radical Party | 4,071 | 0.23 | — | — | ||
| National Labor Party | 3,357 | 0.19 | — | — | ||
| Federalist Radical Civic Union (UCR-F) | 2,636 | 0.15 | — | — | ||
| Independent Radical Civic Union | 1,878 | 0.11 | — | — | ||
| National Democratic Party (Graffignista) (PDN) | 1,574 | 0.09 | — | — | ||
| Others | 1,078 | 0.06 | — | — | ||
| Total | 1,752,130 | 100 | 81 | 158 | ||
| bgcolor=#333333 colspan=4 | ||||||
| Positive votes | 1,752,130 | 94.89 | ||||
| Blank votes | 67,951 | 3.68 | ||||
| Invalid votes | 443 | 0.02 | ||||
| Invalid/blank votes | 1,006 | 0.05 | ||||
| Tally sheet differences | 25,021 | 1.36 | ||||
| Total votes | 1,846,551 | 100 | ||||
| Registered voters/turnout | 2,705,347 | 68.26 | ||||
| Source:[1] | ||||||
| Province | Concordance | UCR | PS | Others | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | |||||
| scope=row | Buenos Aires | bgcolor=lightblue | 359,455 | bgcolor=lightblue | 83.55 | align=center bgcolor=lightblue | 14 | 62,777 | 14.59 | 7 | 7,842 | 1.82 | — | 151 | 0.03 | — |
| scope=row | Buenos Aires City | 94,174 | 26.3 | 5 | bgcolor=pink | 132,129 | bgcolor=pink | 36.91 | align=center bgcolor=pink | 11 | 71,843 | 20.07 | — | 59,795 | 16.7 | — |
| scope=row | Catamarca | bgcolor=lightblue | 16,743 | bgcolor=lightblue | 99.98 | align=center bgcolor=lightblue | 2 | — | — | — | — | — | — | 3 | 0.01 | — |
| scope=row | Córdoba | 62,943 | 37.93 | 2 | bgcolor=pink | 90,707 | bgcolor=pink | 54.67 | align=center bgcolor=pink | 4 | 4,109 | 2.47 | — | 8,158 | 4.91 | — |
| scope=row | Corrientes | bgcolor=lightblue | 86,498 | bgcolor=lightblue | 99.89 | align=center bgcolor=lightblue | 3 | — | — | — | — | — | — | 88 | 0.1 | — |
| scope=row | Entre Ríos | bgcolor=lightblue | 66,426 | bgcolor=lightblue | 52.47 | align=center bgcolor=lightblue | 2 | 54,755 | 43.25 | 1 | 2,047 | 1.61 | — | 3,357 | 2.65 | — |
| scope=row | Jujuy | bgcolor=lightblue | 15,802 | bgcolor=lightblue | 100 | align=center bgcolor=lightblue | 2 | — | — | — | — | — | — | — | — | — |
| scope=row | La Rioja | bgcolor=lightblue | 12,334 | bgcolor=lightblue | 100 | align=center bgcolor=lightblue | 2 | — | — | — | — | — | — | — | — | — |
| scope=row | Mendoza | bgcolor=lightblue | 47,938 | bgcolor=lightblue | 74.41 | align=center bgcolor=lightblue | 4 | 12,961 | 20.12 | 1 | 878 | 1.36 | — | 2,640 | 4.09 | — |
| scope=row | Salta | bgcolor=lightblue | 35,010 | bgcolor=lightblue | 89.32 | align=center bgcolor=lightblue | 3 | 2,125 | 5.422 | — | 179 | 0.45 | — | 1,878 | 4.79 | — |
| scope=row | San Juan | bgcolor=lightblue | 28,424 | bgcolor=lightblue | 91.14 | align=center bgcolor=lightblue | 3 | 439 | 1.4 | — | 748 | 2.39 | — | 1,574 | 5.04 | — |
| scope=row | Santa Fe | bgcolor=lightblue | 157,958 | bgcolor=lightblue | 65.08 | align=center bgcolor=lightblue | 6 | 75,511 | 31.11 | 3 | 8,385 | 3.45 | — | 832 | 0.34 | — |
| scope=row | Santiago del Estero | bgcolor=lightblue | 63,227 | bgcolor=lightblue | 86.62 | align=center bgcolor=lightblue | 3 | 9,763 | 13.37 | — | — | — | — | — | — | — |
| scope=row | Tucumán | 33,094 | 36.96 | 1 | 10,858 | 12.12 | — | 3,260 | 3.64 | — | 42,312 | 47.26 | align=center bgcolor=#FF9999 | 2 | ||
| Total | 1,080,026 | 61.64 | 52 | 452,025 | 25.79 | 27 | 99,291 | 5.66 | 0 | 120,788 | 6.89 | 2 | ||||