# 1968 Japanese House of Councillors election

House of Councillors elections were held in Japan on 7 July 1968, electing half the seats in the House. The Liberal Democratic Party won the most seats, although this marked the first House of Councillors election in the LDP's history in which its share of the popular vote decreased when compared to the election prior to it.

## Results

Seats :
| Party | Party | Votes | % | Seats | Votes | % | Seats | Not up | Won | Total after | +/– |
| | Liberal Democratic Party | 20,120,089 | 46.71 | 21 | 19,405,546 | 44.86 | 48 | 68 | 69 | 137 | –3 |
| | Japan Socialist Party | 8,542,199 | 19.83 | 12 | 12,617,680 | 29.17 | 16 | 37 | 28 | 65 | –8 |
| | Komeitō | 6,656,771 | 15.45 | 9 | 2,632,528 | 6.09 | 4 | 11 | 13 | 24 | +4 |
| | Democratic Socialist Party | 2,578,581 | 5.99 | 4 | 3,010,089 | 6.96 | 3 | 3 | 7 | 10 | +3 |
| | Japanese Communist Party | 2,146,879 | 4.98 | 3 | 3,577,179 | 8.27 | 1 | 3 | 4 | 7 | +3 |
| | Other parties | 157,501 | 0.37 | 0 | 106,587 | 0.25 | 0 | 0 | 0 | 0 | 0 |
| | Independents | 2,872,279 | 6.67 | 2 | 1,910,371 | 4.42 | 3 | 2 | 5 | 7 | 0 |
| Total | Total | 43,074,299 | 100.00 | 51 | 43,259,980 | 100.00 | 75 | 124 | 126 | 250 | –1 |
| Valid votes | Valid votes | 43,074,299 | 94.84 | | 43,259,980 | 95.24 | | | | | |
| Invalid/blank votes | Invalid/blank votes | 2,343,354 | 5.16 | | 2,161,083 | 4.76 | | | | | |
| Total votes | Total votes | 45,417,653 | 100.00 | | 45,421,063 | 100.00 | | | | | |
| Registered voters/turnout | Registered voters/turnout | 65,886,145 | 68.93 | | 65,886,145 | 68.94 | | | | | |
| Source: Ministry of Internal Affairs and Communications, National Diet ||||||||||||

### By constituency

| Constituency | Total seats | Seats won | Seats won | Seats won | Seats won | Seats won | Seats won |
| Constituency | Total seats | LDP | JSP | Kōmeitō | DSP | JCP | Ind. |
| Aichi | 3 | 1 | 1 | 1 | | | |
| Akita | 1 | 1 | | | | | |
| Aomori | 1 | | | | | | 1 |
| Chiba | 2 | 2 | | | | | |
| Ehime | 1 | 1 | | | | | |
| Fukui | 1 | 1 | | | | | |
| Fukuoka | 3 | 2 | 1 | | | | |
| Fukushima | 2 | 2 | | | | | |
| Gifu | 1 | 1 | | | | | |
| Gunma | 2 | 2 | | | | | |
| Hiroshima | 2 | 1 | 1 | | | | |
| Hokkaido | 4 | 2 | 2 | | | | |
| Hyōgo | 3 | | 1 | 1 | 1 | | |
| Ibaraki | 2 | 1 | 1 | | | | |
| Ishikawa | 1 | | | | | | 1 |
| Iwate | 1 | 1 | | | | | |
| Kagawa | 1 | 1 | | | | | |
| Kagoshima | 2 | 2 | | | | | |
| Kanagawa | 2 | 1 | 1 | | | | |
| Kōchi | 1 | 1 | | | | | |
| Kumamoto | 2 | 2 | | | | | |
| Kyoto | 2 | 1 | | | | 1 | |
| Mie | 1 | 1 | | | | | |
| Miyagi | 1 | 1 | | | | | |
| Miyazaki | 1 | 1 | | | | | |
| Nagano | 2 | 1 | 1 | | | | |
| Nagasaki | 1 | 1 | | | | | |
| Nara | 1 | 1 | | | | | |
| Niigata | 2 | | 1 | | | | 1 |
| Ōita | 1 | 1 | | | | | |
| Okayama | 2 | 1 | 1 | | | | |
| Osaka | 3 | 1 | | 1 | 1 | | |
| Saga | 1 | 1 | | | | | |
| Saitama | 2 | 1 | 1 | | | | |
| Shiga | 1 | | 1 | | | | |
| Shimane | 1 | 1 | | | | | |
| Shizuoka | 2 | 2 | | | | | |
| Tochigi | 2 | 2 | | | | | |
| Tokushima | 1 | 1 | | | | | |
| Tokyo | 4 | 1 | 1 | 1 | 1 | | |
| Tottori | 1 | | 1 | | | | |
| Toyama | 1 | | 1 | | | | |
| Wakayama | 1 | 1 | | | | | |
| Yamagata | 1 | 1 | | | | | |
| Yamaguchi | 1 | 1 | | | | | |
| Yamanashi | 1 | 1 | | | | | |
| National | 51 | 21 | 12 | 9 | 4 | 3 | 2 |
| Total | 127 | 69 | 28 | 13 | 7 | 4 | 5 |