Federated Farmers chief executive Conor English has announced he will be stepping down in July, after six years in the role.
Mr English had previously worked for the federation as a policy advisor for the grains and seeds section.
He said after almost 10 years in total with the federation it was time to move on, though he has nothing specific lined up at this stage.
Mr English said he has given early notice of his decision to resign to give Federated Farmers plenty of time to plan for that and other changes at the start of the year.
As well as a new chief executive, the organisation will be looking for a new president. Bruce Wills, is due to step down at the end of his three year term, also in July, along with several national board members.