Tim Cadogan has comfortably unseated Tony Lepper to become Central Otago's new mayor.
His win means the Cadogan family now has two Otago mayors, as his brother Bryan is the Clutha District mayor.
Mr Cadogan polled 5047 votes, more than double that polled by Mr Lepper, with 2521 votes.
The third candidate Martin McPherson polled 986 votes.
Mr Cadogan said he was "humbled by the support" he had received.
"I feel utterly privileged to have that much confidence placed in me by the people of Central Otago."
"I'd talked all the campaign about a disconnect between the [Central Otago District] council and the community. I think my message that it was time for that to change was picked up by people."
He and Mr McPherson would work together on the council for the benefit of the region, and Mr Lepper still had a lot to offer its people, he said.
"We all ran honourable campaigns and we gave the people of Central Otago three really good options to choose from."
