William Walter Mulholland

Sir William Walter Mulholland OBE (8 January 1887 – 9 November 1971) was a notable New Zealand farmer and farmers' union leader. He was born in Greendale, North Canterbury, New Zealand on 8 January 1887.

Mullholland was appointed an Officer of the Order of the British Empire for services as the president of the Farmers' Union in the 1946 New Year Honours. In the 1956 New Year Honours he was appointed a Knight Bachelor for services to farming in New Zealand.