"I am honoured and excited. It's nice to be recognised after all these years," Bryant said of his New Year honour.
"There were tears in my eye when I told my kids."
Bryant said his work had always been "on the fringes", challenging the mainstream thinking of the day.
Whether that was being a man leading an all-girls school or tackling big social issues in his literary works; poverty, racism and - coming in 2019 - the meaning of life on Earth.
"I have always believed you can change society with the written word."
He said his best sellers had always been stories about inspirational Kiwis.
Bryant said the two greatest influences in his life had been his Christian faith and his wife of 53 years, Joan Bryant.