"I really, really, strongly support the 2025 Smokefree Aotearoa initiative," she said.
The amount of Whanganui people who smoke has risen by two per cent to 19.3 per cent over the past three years.
She said the problem with the council's bylaw was it could not enforce it.
"It has no parent legislation to guide it."
"The only thing that is reducing smoking is standardised packaging and price hikes," she said.
Deputy mayor Hamish McDouall said the bylaw was required to be reviewed, so should be.
He said a bylaw did not have to be enforced rigidly but was enough to make people consider their actions, a point echoed by councillor Martin Visser.
"This is as much about the messaging that we are putting out there than it is about the actual teeth the bylaw has," Mr Visser said.
"We're trying to be a leading edge city, we should be leading in terms of people's health."
Mayor Annette Main said the council could either review the bylaw or revoke it.
"I think that sometimes the council does have to be brave. Six years ago we were brave. If we don't review this bylaw, the only other option is to revoke it and that would be a step back for this community."