More than 1100 students at the University of Warwick have rejected a plan to twin with the Hamas-backed Islamic University of Gaza.
It is thought to be the first time a twinning motion has been defeated at the union.
Warwick's Jewish-Israeli Society was unable actively to oppose the twinning as it is classified as a cultural society by the university and cannot campaign.
But pro-Israel students lobbied their colleagues to vote against the proposal in the four-day online poll last week.