Trask

• Alan Trask, American farmer and politician
• Betty Trask, English romantic novelist
• Clara Augusta Jones Trask, American writer
• Diana Trask, a singer
• Elbridge Trask, a mountain man
• Eliphalet Trask, a politician
• Gustavus Trask, the governor of Sailors' Snug Harbor
• Haunani-Kay Trask, an activist and writer
• John Trask (disambiguation)
• Katrina Trask, an author and philanthropist
• Keith Trask, a rower
• Kyle Trask, an American football player
• Larry Trask, a linguist
• Laura Trask, New Zealand politician
• Leonard Trask, famous 1860s medical curiosity
• Mililani Trask, an activist
• Orville Trask, an American football player
• Ozell Miller Trask, U.S. federal judge
• Sigourney Trask, an American physician and missionary
• Spencer Trask, a financier and philanthropist
• Stephen Trask, a musician and composer
• Sylvanus Trask, American politician
• Wayland Trask, Jr., American silent film actor

In fiction

• Oliver Trask, a character on The O.C.
• Father Trask, a minor character that appears in "The Wedding from Hell", an episode of Charmed who is a part of a secret organization to stop Hecate.
• Trask Ulgo, a character in the video game Star Wars: Knights of the Old Republic
• Reverend Trask, a character in the 1960s soap opera Dark Shadows.
• The Trask family, characters in John Steinbeck's 1952 novel East of Eden
• Trask Industries, a company owned by the Trask family in Working Girl
• Trask security, a company handling kidnapping and ransom cases in Studio 60 on the Sunset Strip
• Jason Trask, a rogue government agent in episodes of Lois and Clark: The New Adventures of Superman
• Frank Trask, a guide in Jasper National Park in the novel Icefields by Thomas Wharton

Marvel Comics

• Bolivar Trask, military scientist and creator of the Sentinels
• Simon Trask, brother of Bolivar Trask and founder of Humanity's Last Stand
• Larry Trask, mutant son of Bolivar Trask
• Marshal Bartholomew "Bat" Trask, "malform" hunter in the DC/Marvel Amalgam Comics ''Generation Hex''