Incumbent Masterton councillor Gary Caffell has confirmed he is "seriously considering" running for mayor.
Mr Caffell said yesterday that a "whole raft of issues" had led him to consider standing for mayor.
One of these was the council's decision to appoint iwi representatives to council committees, a move which Mr Caffell is challenging by filing a motion calling on council not to act on the decision until after the elections in October, thereby allowing an incoming council to enact the decision if they choose to do so.
He had received a huge amount of support since his decision to file the motion was made public, Mr Caffell said.
"[People have been] hugely supportive of the stand to at least go back over the process in which it was done, not so much the actual decision but the process."