Three colleges - King's, Trinity and St John's - are now offering the ceremonies, which were hailed by one campus chaplain as offering "safe, sacred space".
Rev Carol Barrett Ford from St John's was said she was holding an Open Table service catering for LGBT people after noticing "a desire to actively promote inclusion in the Chapel".
The Open Table movement describes itself as an "ecumenical Christian worship community which offers a warm welcome to people who are lesbian, gay, bisexual, transgender, queer / questioning, intersex, asexual".
Meanwhile, three "inclusive" chapel services are being held at King's College this term by Chaplain Rev Andrew Hammond who wants to welcome everyone, regardless of their sexuality or gender identity.
He told the Varsity student newspaper: "I wanted to do something that was very, very different, but still cohered with the general values of the place."
Explaining his view that church teaching on gender identity and sexuality needs to change, Rev Hammond said the "quality of the love, not the gender of the lovers" matters.