St. Catherine's College unveiled the new lavatories last month, according to 'The Sunday Times'.
The doors carry a sign combining the familiar scientific symbols for male and female and lead to more than 10 cubicles that can be used by men or women.
There are no urinals.
Alexander Langedijk, president of the junior common room at the college, said students first raised the question of gender-neutral lavatories in 2014.
"The college has other guests, not just students, and consideration had to be given to how people would react and whether they would understand the sign.
"The students were quicker to accept the idea than the college. We hope other colleges will adopt this," he added.
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