Johnson's name has been floated in recent days as a replacement for Damien Wright, the Australian who has resigned from his New Zealand post.
The theory is Johnson, in his second year of his second stint with Otago, is the obvious candidate because of his experience and bowling coaching knowledge.
But he told the Otago Daily Times yesterday he was not interested - yet, anyway - in applying for the job.
"I've only just come back to Otago cricket and I want to show my allegiance to them," Johnson said.
"They gave me an opportunity and I feel I owe it to them to coach the Volts as long as I can."
Johnson, who succeeded Mike Hesson as Otago coach when Hesson got the New Zealand job, said it was nice to think he might be considered a candidate for the role.
He had previously assisted the Black Caps in the John Bracewell era.
While he did not rule out the prospect of doing a similar job again, he wanted to concentrate on Otago's fortunes for now.
Former Black Caps pace bowler Shane Bond has already said he is interested in joining Hesson's staff.
