| Country: | Iceland |
| Previous Election: | 1979 |
| Election Date: | 23 April 1983 |
| Next Election: | 1987 |
| Seats For Election: | All 40 seats in the Lower House and 20 seats in the Upper House of Althing |
| Turnout: | 88.29% |
| Heading1: | Upper House |
| Heading7: | Lower House |
| Leader1: | Geir Hallgrímsson |
| Leader7: | Geir Hallgrímsson |
| Party1: | Independence Party (Iceland) |
| Party7: | Independence Party (Iceland) |
| Last Election1: | 7 |
| Last Election7: | 14 |
| Seats1: | 8 |
| Seats7: | 15 |
| Percentage1: | 38.67 |
| Percentage7: | 38.67 |
| Leader8: | Steingrímur Hermannsson |
| Party2: | Progressive Party (Iceland) |
| Party8: | Progressive Party (Iceland) |
| Last Election2: | 6 |
| Last Election8: | 11 |
| Seats2: | 4 |
| Seats8: | 10 |
| Percentage2: | 19.05 |
| Percentage8: | 19.05 |
| Leader3: | Svavar Gestsson |
| Leader9: | Svavar Gestsson |
| Party3: | People's Alliance (Iceland) |
| Party9: | People's Alliance (Iceland) |
| Last Election3: | 4 |
| Last Election9: | 7 |
| Seats3: | 3 |
| Seats9: | 7 |
| Percentage3: | 17.31 |
| Percentage9: | 17.31 |
| Leader4: | Kjartan Jóhannsson |
| Leader10: | Kjartan Jóhannsson |
| Party4: | Social Democratic Party (Iceland) |
| Party10: | Social Democratic Party (Iceland) |
| Last Election4: | 3 |
| Last Election10: | 7 |
| Seats4: | 2 |
| Seats10: | 4 |
| Percentage4: | 11.71 |
| Percentage10: | 11.71 |
| Leader5: | Vilmundur Gylfason |
| Leader11: | Vilmundur Gylfason |
| Party5: | Alliance of Social Democrats |
| Party11: | Alliance of Social Democrats |
| Last Election5: | new |
| Last Election11: | new |
| Seats5: | 2 |
| Seats11: | 2 |
| Percentage5: | 7.30 |
| Percentage11: | 7.30 |
| Party6: | Women's List |
| Party12: | Women's List |
| Last Election6: | new |
| Last Election12: | new |
| Seats6: | 1 |
| Seats12: | 2 |
| Percentage6: | 5.48 |
| Percentage12: | 5.48 |
| Prime Minister | |
| Before Party: | Independence Party (Iceland) |
| After Election: | Steingrímur Hermannsson |
| After Party: | Progressive Party (Iceland) |
Parliamentary elections were held in Iceland on 23 April 1983.[1] The Independence Party remained the largest party in the Lower House of the Althing, winning 15 of the 40 seats.[2]
| Constituency | People's Alliance | Social Democratic | Alliance of Social Democrats | Progressive | Independence | Other |
|---|---|---|---|---|---|---|
| Eastern | 29.85% | 3.98% | 3.81% | 37.90% | 24.46% | 0.00% |
| Northeastern | 16.84% | 10.97% | 4.55% | 34.67% | 27.20% | 5.77% |
| Northwestern | 18.03% | 7.21% | 3.10% | 40.34% | 31.32% | 0.00% |
| Reykjanes | 13.77% | 14.83% | 8.11% | 11.91% | 44.18% | 7.21% |
| Reykjavík | 18.98% | 10.78% | 9.49% | 9.42% | 42.97% | 8.37% |
| Southern | 14.53% | 12.15% | 5.40% | 27.98% | 39.94% | 0.00% |
| Westfjords | 13.14% | 16.79% | 3.58% | 27.43% | 27.45% | 11.61% |
| Western | 15.21% | 13.50% | 6.34% | 30.21% | 34.74% | 0.00% |
| Source: Constituency Level Election Archive |