People

• Andy Summers, an English guitarist
• Bill Summers, an American baseball umpire
• George W. Summers, an American politician of the 19th centur
• Harry G. Summers, Jr., an American army Colonel and author about the Vietnam War
• Henry Summers, a British civil servant
• John W. Summers, an American politician
• Lawrence Summers, an economist and former president of Harvard University
• Marc Summers, an American television personality
• Montague Summers, an English author and clergyman
• Robert Summers, an American economist
• Robert Summers (artist), an American painter and sculptor
• Robert Samuel Summers, U.S. academic
• Steve Summers, lead singer of the band Pretty Boy Floyd

Fictional characters

• Scott Summers, a comic book character, X-Men's Cyclops
• Alex Summers, a comic book character, X-Men's Havok
• Gabriel Summers, a comic book character, X-Men's Vulcan
• Rachel Summers, a comic book character
• Buffy Summers, the central character of the film and television series Buffy the Vampire Slayer
• Dawn Summers, another character in the world of Buffy the Vampire Slayer
• Joyce Summers, the mother of Buffy and Dawn Summers in Buffy the Vampire Slayer

Businesses

• Ann Summers, a British retailer of sex toys and lingerie