A new survey has found almost two-thirds of Australians think same-sex couples should be allowed to marry.
The survey was commissioned by groups campaigning for legislative changes to the Marriage Act.
Greens spokeswoman Sarah Hanson-Young says the survey results show the existing laws are out of step with community attitudes.
"Despite the historic leaps and bounds that we made last year in terms of bringing a number of measures in line which brought same sex-couples with opposite sex couples, the glaring omission to that suite of legislation was to allow same-sex couples to marry," she said.
75% of green voters, 63% of labor voters and 49% of coalition voters backed same sex marriage.
Same sex marriage is legal in Canada, Spain, Belgium, South Africa and 6 US states.
Greens leader Bob Brown has urged the government to give same sex couples more than just civil unions.
The push for full marriage rights is on, with many couples in civil unions overseas facing discrimination at work, with superanuation and in other areas, its clear that a civil union is not a marriage.
The Greens' sexuality and gender spokeswoman Sarah Hanson-Young has said the survey's findings would put pressure on Labor ahead of the national ALP conference in Sydney next month in July. All labor party members who can should attend to show their support for same sex marriage.
Remember there is a bisexual pub night this Sunday at the marlborough hotel, newtown 6pm.