Hammer's Slammers is a 1979 collection of military science fiction short stories by author David Drake. It follows the career of a future mercenary tank regiment called Hammer's Slammers, after their leader, Colonel Alois Hammer. This collection, and other novels and stories in the same setting, are collectively called the Hammer stories, and the setting is called the Slammers universe or the Hammerverse.
As with his other work, Drake borrows plots from historical or mythological sources for many of the Hammer's Slammers stories. For example, he retells the story of Jason and the Argonauts in The Voyage, and part of the Odyssey in Cross the Stars. Other stories borrow from pulp-era fiction (The Sharp End is based on Dashiell Hammett's Red Harvest.)