People

• Dexter (given name)
• Dexter (surname)
• Dexter (musician), Brazilian rapper Marcos Fernandes de Omena (born 1973)
• Famous Dex, also known as Dexter, American rapper Dexter Tiewon Gore Jr. (born 1993)

Places

• Dexter, Georgia, a town
• Dexter, Illinois, an unincorporated community
• Dexter, Indiana, an unincorporated community
• Dexter, Iowa, a city
• Dexter Township, Cowley County, Kansas; Dexter, Kansas, a city
• Dexter, Kentucky, an unincorporated community
• Dexter, Maine, a town; Dexter (CDP), Maine, a census-designated place; Dexter Regional Airport
• Dexter Township, Michigan
• Dexter, Michigan, a city located near, though distinct from, Dexter Township
• Dexter Township, Mower County, Minnesota; Dexter, Minnesota, a city
• Dexter, Missouri, a city
• Dexter, New Mexico, a town
• Dexter, New York, a village; Dexter Marsh
• Dexter City, Ohio, a village
• Dexter, Oregon, an unincorporated community in Lane County
• Dexter State Recreation Site, Lane County, Oregon, a state park
• Dexter Reservoir, also known as Dexter Lake, near Dexter, Oregon
• Dexter, Wisconsin, a town
• Dexter (community), Wisconsin, an unincorporated community in the town of Friendship

• Dexter, a community in Central Elgin, Ontario

Schools in the United States

• Dexter High School, located in Dexter, Michigan
• Dexter Regional High School, located in Dexter, Maine
• Dexter School, a private school for boys in Brookline, Massachusetts

Science and technology

• Dexter, an example of software that measures mental abilities
• Dexter (malware), a type of computer virus
• Dexter (robot), a robot that walks on two legs and can balance itself, developed by Anybots as part of a research project
• Dexter Award, an award given by the American Chemical Society from 1956 to 2001
• Dexter National Fish Hatchery & Technology Center, a fish hatchery and technology center located in Dexter, New Mexico, United States

Ships

The following are examples of ships named Dexter:
• USCGC Dexter, ships of the United States Coast Guard
• USRC Dexter, ships of the United States Revenue Cutter Service

Structures

• Dexter Building, located in Chicago, Illinois, United States
• Dexter Cabin, located in Leadville, Colorado, United States
• Dexter House (a list of different places or things with the same name)

Other uses

• Dexter: A Latin word meaning "right." In heraldry, "dexter" refers to the right side of the person carrying the arms (the left side for someone viewing the arms).
• Dexter cattle: A type of cattle breed.
• Dexter Air Taxi: A Russian air taxi service.
• Dexter (TV series): An American crime drama that aired on Showtime. Dexter Morgan: The main character in the series. Dexter (episode): The first episode of the series.
• Dexter (film): A 2025 Indian Tamil-language film.
• Tropical Storm Dexter (2025): The fourth named storm of the 2025 Atlantic hurricane season.