The country's Supreme Court annulled the results of the first round of polls, which had been held on Sept 7, and called for a new vote.
"The Secretary-General takes note of the Maldivian Supreme Court's decision," his spokesperson said in a statement.
The spokesperson added that Ban "acknowledges the continuing efforts by the Elections Commission of the Maldives."
Earlier Tuesday, the Commission announced that a revote will be held Oct 19.
The election had been seen as an important step in the country's democratic transition.
The Maldives underwent a change of Government in 2012, when the previous democratically-elected President, Mohamed Nasheed, resigned in contested circumstances.
He was succeeded by his former deputy, Mohammed Waheed Hassan.
The first round of the presidential election was widely recognized as a success by international and domestic election observers.
A second round had been scheduled for Sept 28.
--IBNS (Posted on 09-10-2013)