Tim Long (born June 14, 1969) is a comedy writer born in Brandon, Manitoba, Canada. Tim calls Exeter, Ontario, Canada his home town and has written for The Simpsons, Politically Incorrect, Spy Magazine and the Late Show with David Letterman. Currently credited as a consulting producer on The Simpsons, Long was - until Season 20 - credited as an executive producer. His work has also recently appeared in the New York Times and The New Yorker. He also wrote the episode Mr Roboto for YTV's Mr. Young.

Long was also a consulting writer on The Simpsons Movie.

He attended high school at South Huron District High School in Exeter, Ontario, Canada. His most recent visit to his former high school was November 21, 2007, where he talked to the staff and students about his achievements.

Tim graduated from University College at the University of Toronto with a major in English Literature and pursued graduate studies in English at Columbia University. He was an intern at Spy magazine under E. Graydon Carter before joining the staff of The David Letterman Show, where he wrote for three years, including one year as Head Writer. In 2008, Long developed and wrote a pilot for the Showtime network entitled "Kevin and the Chart of Destiny". He is currently developing an HBO series for Molly Shannon, and was also hired by producers Richard Donner and Lauren Shuler Donner to adapt The Goonies into a Broadway musical. He has won five Emmy awards, and been nominated for eight others.