The day marked International Day against Homophobia, Biphobia, Interphobia and Transphobia (IDAHOBIT), with the university flying rainbow flags and installing rainbow crossings across the campus.

IDAHOBIT is an important date for the LGBTIQ+ communities, as they unite with their allies in support of the recognition of human rights for all, irrespective of sexual orientation, gender identity or expression.

CSU SRC president Vittorio Travan said the day was about encouraging inclusiveness, regardless of gender or race.

"It doesn't matter. It's all one, happy family," he said.

"We thought inclusiveness was such a big part of university, so there was no other way we wanted to push it forward.

"I think campus is really inclusive, but sometimes it's hidden. Having a public show sometimes makes students to feel more comfortable or to seeking help.

"That's what university is all about, making sure everyone is comfortable asking for help and with who they are."

Director of CSU's Centre for Law and Justice, Associate Professor Alison Gerard, said one of the university's core values is inclusiveness.

"We are committed to creating and sustaining a culture in which sexual and gender diversity is not only accepted but is affirmed and celebrated," she said.

"While in Australia we have lots of rights and recognition, still there's other parts in the world, you can get the death penalty for being in a same-sex relationship.

"We're privledge in what we have here, but in other countries, they don't have those same things.

"But there's still pockets in Australia where people feel they can't be out and proud. As a head of the law school here at CSU, I come out to all my students. I feel that's very important."

The day was also celebrated on other CSU campuses at Albury, Dubbo, Orange, Port Macquarie and Wagga.

As well as handing out lollies and rainbow flags, there was an information stall and a pledge signing where people can pledge to take a stand against homophobia, biphobia, transphobia and intersexism.