In 1947, Eucalyptus chapmania, also known as Bogong Snow Gum, was named for him. Wilfrid Chapman was the first to discover the tree while being part-time commissioner of the Victorian State Electricity Commission and involved in the Hydro Scheme planning. One tree was marked with a commemorative plaque and was a landmark beside the road between Mount Beauty and Falls Creek. Despite being severely burnt in the 2003 fires, it resprouted but died a few years later. A sample of the Bogong Snow Gum was planted in the Maranoa Gardens in Balwyn, Victoria and is identified by a plaque. His father Frederick Chapman had contributed in setting up the Maranoa Gardens.

He was actively associated with the University of Melbourne, Australian National Research Council and ANZAAS.

From 1959 the annual oration of the Victoria division, Institution of Engineers Australia, was named in his honour as the "W.D. Chapman Oration".

He is also recognised and memorialised by the silver "Dr. Wilfred Chapman Medal" awarded by the Australian Welding Institute.

Some Associated Engineering Works:

* 1925 Strengthening Echuca Bridge, Victoria /NSW;
* 1925 Strengthening Princes Bridge, Melbourne;
* 1929 Railway viaducts at Glenroy and Albion, Victoria;
* 1929 Spencer Street Bridge, Melbourne;
* 1930 Reconstruction Hawthorn Bridge, Victoria;