| Election Name: | 1965 South African Senate election |
| Country: | South Africa |
| Flag Year: | 1928 |
| Type: | Parliamentary |
| Vote Type: | Popular |
| Ongoing: | no |
| Previous Election: | 1960 South African Senate election |
| Previous Year: | 1960 |
| Next Election: | 1970 South African Senate election |
| Next Year: | 1970 |
| Seats For Election: | 43 of 53 seats in the Senate |
| Majority Seats: | 27 |
| Leader1: | Hendrik Verwoerd |
| Party1: | National Party (South Africa) |
| Last Election1: | 38 seats |
| Seats1: | 40 |
| Seat Change1: | 2 |
| Percentage1: | 75.47% |
| Leader2: | De Villiers Graaff |
| Party2: | United Party (South Africa) |
| Last Election2: | 15 seats |
| Seats2: | 13 |
| Seat Change2: | 2 |
| Percentage2: | 24.53% |
| Map Size: | 300px |
The election for the eighth Senate of South Africa took place on November 26, 1965, the first election to that body to be held under the 1961 republican constitution and the first in which a representative of the coloured community was not elected. The result was a victory for the ruling National Party, winning 30 out of the 43 elected seats and 40 out of the total 53 seats.[1]
According to section 29(2)(b) of the 1961 constitution, "at least one of the two senators nominated from each province under this section shall be thoroughly acquainted, by reason of official experience or otherwise, with the interests of the coloured population in the province for which the said senator is nominated". An additional (white) senator should have been nominated in accordance with section 7 of the Separate Representation of Voters Act, 1951 "on the ground of his thorough acquaintance, by reason of his official experience or otherwise, with the reasonable wants and wishes of the non-European [i.e. Coloured, as black Africans were explicitly excluded from the definition under section 1 (ii) of the 1951 act] population in the province of the Cape of Good Hope", but this seat continued to be left vacant (as it had been since 1962). The Separate Representation of Voters Amendment Act, 1968 explicitly prohibited to fill the vacancy and finally abolished this seat with effect from 1970.