George Henry Christen Duggan (3 July 1912 – 16 December 2012) was a New Zealand Marist priest, philosopher, seminary professor and writer. He was popularly known as Chalky Duggan - after a featherweight boxer who fought in 1919, when Duggan was 7 years old, under the name "Chalky Duggan" and who, like Duggan, came from Runanga