William Ian Hamilton (born May 24, 1946) is a Canadian mystery writer.
A former journalist and civil servant, his work has appeared in Maclean's, Boston, the Leader-Post, the Calgary Albertan, and the Calgary Herald.Hamilton is the author of the Ava Lee crime/mystery series.
Ava Lee is a Chinese-Canadian forensic accountant who chases massive bad debts for a living.
There are seven books in the series as of late 2014, with another three contracted.