Middle man or middleman may mean:

• A third party - typically a sales agent - who acts on behalf of a company when dealing with customers; so the phrase "cutting out the middle man" refers to customers dealing directly with the manufacturer.
• Middle Man, an album by Boz Skaggs
• The Middleman is a comic published by notable independent publisher Viper Comics
• The Middleman (TV series), an ABC Family TV series based on the comic
• The Middle Men or Men of Twilight, a racial group of characters from J.R.R. Tolkien's legendarium
• Middleman node, a node in anonymity networks such as Tor or Mixmaster that only forwards messages to other anonymizing nodes and never lets messages exit the network
• Man-in-the-middle attack, a type of attack in cryptography