Amateur in Violence is a collection of mystery stories by the British thriller writer Michael Gilbert, published in the United States in 1973 by Davis Publications, a publishing house for magazines, but not in England. The book is edited, and has an introduction, by Ellery Queen, the founder and long-term editor of Ellery Queen's Mystery Magazine. It contains 10 stories and a short novel that had been previously uncollected in the United States. Some of them feature characters who have figured in other novels and short stories by Gilbert. Three stories feature Inspector Hazlerigg and four Inspector Petrella. The short novel, "Stay of Execution", had previously given its name to the title of a collection published in England in 1971.