Casey Conway represents a triple-threat for organisers of the Northern Territory's latest sexual health campaign as a former national rugby league (NRL) player who is Aboriginal and gay.

The Queenslander agreed to lend his face, and body, to a series of colourful advertisements designed to encourage people in the Top End to take their sexual health seriously.

It is a fun campaign that fronts the disturbing reality that the Northern Territory has the highest rates of sexually transmitted infections in the country.

It is also Conway's latest move to use his public profile to help raise awareness about issues affecting both the gay and aboriginal communities.

He said he only felt comfortable to come out publicly after his career with the Sydney Roosters NRL club was cut short due to injury.

"I guess I tried my hardest to hide it for as long as I could," he said.

"It wasn't until I moved to Sydney and saw that world for myself and was able to meet other gay people that sort of normalised it a bit for me."

Conway currently lives in Brisbane but is uniquely qualified for the NT AIDS and Hepatitis Council's campaign.

Since leaving rugby league he has worked as a swimwear model and a youth worker.

He said he lacked gay role models while growing up, and hoped his involvement in the campaign would also send a broader message to those struggling with their sexuality.

"It is okay to be gay, you can still be yourself, it doesn't change who you are or that you belong in society," Conway said.

"I guess initially I didn't really think that my story would resonate with many people.

"It's kind of mind blowing to me that someone would take the time to let me know that just by sharing my story it has made things easier for them."

Syphilis outbreak across Northern Territory

The NT campaign is based on the Victorian AIDS Council's long-running 'Drama Down Under' advertisements, which encouraged people to get a sexual health test every season.

The Executive Director of the NT Aids and Hepatitis Council, Kim Gates, said with only two seasons in the territory - wet and dry - the region needed its own version of the campaign.

While she conceded the AFL is the biggest code in the territory, she said the NRL comes a close second and hoped Conway's profile would get the attention of a broad range of people.

"I'm hoping to see Casey's face splashed everywhere across the territory," she said.

She said most remote communities have only one small healthcare clinic and nurses often have more pressing issues to focus on than conducting sexual health tests.

"Sometimes sexual health is not a priority, so people are coming in with acute health issues and they need to be dealt with," she said.

"We do have the highest rates of STIs than any other jurisdiction in the country, we are currently experiencing a syphilis outbreak across the top end of Australia."

The Casey Conway campaign is expected to be officially launched in the Northern Territory by the end of the year.