Arthur Bache Walkom (8 February 1889 – 2 July 1976) was an Australian palaeobotanist and museum director.
Walkom was born in Grafton, New South Wales and moved with his family to Sydney where he was educated at Petersham Public and Fort Street Model schools and the University of Sydney graduating with a D.Sc.
He worked under Professor (Sir) Edgeworth David as a junior demonstrator.
From 1947 to 1954 he served on the United Nations Educational, Scientific and Cultural Organization's Australian committee for museums.
He was awarded the Clarke Medal by the Royal Society of New South Wales in 1948.