The club, which plays in the Bundaberg rugby league, has been under pressure to change since the terrorist organisation of the same name began rising to prominence two years ago.
Despite ongoing horror in the Middle East and the recent terror attacks in Paris, the local side is refusing to budge.
“We’ve had this name for a long time and other places can do what they like, really,” spokesman Kevin Grant told the Guardian this week.
“We’ve been Isis for a long time.
“Newcomers come along and adopt our name. We’re not going to change.
“In the next six months they might not exist, with a bit of luck.”
The Isis district, which is just south of Bundaberg, is home to 7000 people and is named after a river in England.
Like the Devils, various other businesses in the area have refused a rebrand and a former deputy mayor of the Isis Shire Council stressed there were no links between the town and the terror group.
“I don’t associate the Isis district with what’s happening overseas and the terrorist group,” Tony Ricciardi told the Guardian.
“It’s totally different and totally divorced from what we’re doing. They’re on a religious basis. We’re just a district that was named for its rich, fertile soil.
“That’s what we relate the Isis district to.
“I wouldn’t want to go overseas with my Isis football jumper on.”
The Devils were in the headlines last year after making the Bundaberg rugby league grand final which was broadcast on ABC Radio.
“The league was trying to get us to change our name then and we really dug our heels in,” said Grant.
“We said ‘nah, we’re quite happy to wear this.’”