Wanganui councillors will re-enter the "H" debate next month.
Mayor Annette Main told this week's council meeting that the Tupoho working party - a liaison group between the council and Te Runanga o Tupoho - had asked council to include the letter in the council's name.
While government departments, the river, the national park and some other organisations use the Whanganui spelling, the district council has yet to take that step.
Ms Main said council meetings in October would have the matter on the agenda.
Meanwhile, the council has adopted other recommendations aimed at increasing Maori language and imagery in its publications. While these moves got the support of the mayor and councillors Philippa Baker-Hogan, Helen Craig, Jason Granville, Martin Visser, Sue Westwood, Jenny Duncan, Rob Vinsen, Rangi Wills and Hamish McDouall, councillors Ray Stevens and Charlie Anderson voted against them.