|Location||Cromwell, Connecticut, U.S.|
|Established||1952, 66 years ago|
|Course(s)||TPC at River Highlands|
|Length||6,844 yards (6,258 m)|
|Prize fund||$7 million|
|Tournament record score|
|Aggregate||258 Kenny Perry (2009)|
|To par||−25 Tim Norris (1982)|
The Travelers Championship is a professional golf tournament on the PGA Tour in Cromwell, Connecticut, a suburb south of Hartford. Since 1984 the tournament has been held at TPC River Highlands. It is managed by The Greater Hartford Community Foundation.
The 2016 tournament was played in August due to the Summer Olympics,  but in 2017 the tournament returned to June.
The tournament was founded 66 years ago in 1952 as the Insurance City Open;  It was renamed the Greater Hartford Open in 1967, a title that was retained through 2003. From 1973 through 1988, the GHO also bore the name of entertainer Sammy Davis Jr., who would often play in the pro-ams. Canon was a title sponsor from 1985 to 2002, and their employees would often take vacation time during tournament week to volunteer at the event. Buick was title sponsor from 2004 to 2006 and The Travelers Companies took over sponsorship in 2007.
For the tournament's first three decades, it was played at Wethersfield Country Club, about five miles (8 km) north. In 1984, after the PGA Tour bought and redesigned Edgewood Country Club, the event moved to the new TPC of Connecticut in Cromwell. In 1991, the course was substantially redesigned with a completely new front nine holes and renamed the TPC at River Highlands. This TPC property was the third PGA Tour owned/managed championship golf course in what would grow to a network of over 30 TPC Clubs (2010).
The purse for the 2006 tournament, under Buick's sponsorship, was $4.4 million, with $792,000 going to the winner. From 2007 to 2010, the purse under Travelers' sponsorship was $6 million, with $1,080,000 going to the champion.
Over the last decade, longer hitters have done well at the tournament, with Stewart Cink, Hunter Mahan, J. J. Henry, Phil Mickelson, and Bubba Watson combining for six victories over a ten-year span. Mahan also finished tied for second in 2006 and 2008. 
Its position on the calendar has varied; in 2005 it was played in late August but in 2006 it was played in late June. Part of the FedEx Cup, the Travelers Championship has been played in late June, the week after the U.S. Open, since 2007.
It is the second-most-attended PGA Tour event annually, behind only the Waste Management Phoenix Open.  In 2011, the tournament attracted 240,000 fans for the week and 70,000 fans on Sunday. The tournament set a record attendance in 2002 with nearly 400,000 fans for the week. In 2017 about 290,000 fans attended, the most since Travelers started hosting the tournament. 
Seven men have won the Travelers Championship more than once through 2018.
- 4 wins
- Billy Casper: 1963, 1965, 1968, 1973
- 3 wins
- Bubba Watson: 2010, 2015, 2018
- 2 wins
- 1952: Ted Kroll wins the inaugural tournament. He beats Lawson Little, Skee Riegel, and Earl Stewart by four shots.  
- 1956: Arnold Palmer makes the Insurance City Open his first United States based PGA Tour victory by beating Ted Kroll in a playoff.  Afterwards Palmer said "Ted is a great guy—he even gave me the putter that beat him." 
- 1962: Bob Goalby defeats Art Wall Jr. on the seventh hole of a sudden death playoff after Wall misses an 18-inch putt for par on the 72nd hole. 
- 1967: African American golfer Charlie Sifford wins his first PGA Tour event. He beats Steve Oppermann by one shot. 
- 1968: Billy Casper becomes the tournament's first and so far only three-time winner. He beats Bruce Crampton by three shots. 
- 1972: Lee Trevino defeats Lee Elder in a sudden death playoff. If Elder had won, he would have become qualified for The Masters. 
- 1973: Billy Casper shoots a final round 64 to win for the fourth time at Hartford. He beats Bruce Devlin by one shot. 
- 1974: Dave Stockton wins by four shots over Raymond Floyd. After the tournament, Stockton gets a congratulatory call from then President Gerald Ford. Stockton also arranges to donate his entire $40,000 winnings check to charity. 
- 1977: Billy Kratzert beats Grier Jones and Larry Nelson by three shots. Two years earlier, Kratzert had quit golf and gone to work as a forklift operator. 
- 1981: Ninety-one players made the 36-hole cut, a PGA Tour record.
- 1982: Tim Norris sets tournament records for aggregate (259) scoring and under par (−25) as he wins by six shots over Hubert Green and Raymond Floyd. 
- 1986: Mac O'Grady shoots a final round 62 to catch Roger Maltbie, then defeats him on the first hole of sudden death. 
- 1989: Paul Azinger chips it in on the 72nd hole to beat Wayne Levi by one shot. 
- 1992: Lanny Wadkins, who had last played in Hartford in 1978, shoots a final round 65 to win by two shots over Dan Forsman, Nick Price, and Donnie Hammond. 
- 2000: Notah Begay III wins for the second week in succession after he makes birdie on the 72nd hole to edge Mark Calcavecchia by one shot. 
- 2002: Phil Mickelson becomes the first winner to successfully defend his title. He beats Jonathan Kaye and Davis Love III by one shot. 
- 2003: Nineteen years after his first triumph in Hartford, Peter Jacobsen wins again, beating Chris Riley.  Jacobsen's $720,000 winner's check was ten times what he earned in 1984.  The tournament was also notable when Suzy Whaley became the first woman in 58 years to play in a PGA Tour event, though her appearance was controversial after playing from shorter tees during her qualifying tournament, the Connecticut PGA Championship.
- 2011: Patrick Cantlay, an amateur golfer from UCLA, set a course-record of 10-under 60, the lowest round ever shot on the PGA Tour by an amateur. 
- 2014: Kevin Streelman birdies the last seven holes in the final round, a PGA Tour record for an event winner. 
- 2016: Jim Furyk shot a 12-under-par 58 in the final round, becoming the first player to shoot 58 in a PGA Tour event. 
- 2017: Jordan Spieth wins in a playoff against Daniel Berger by holing his bunker shot for birdie on the first playoff hole. Berger had a chance to advance the playoff, but missed his long birdie putt.
- Wacker, Brian (July 23, 2015). "Travelers Championship announces new date". PGA Tour.
- "Ted Kroll wins first tournament". Ottawa Citizen. Associated Press. September 2, 1952. p. 18.
- "Travelers Championship – Past Winners". PGA Tour. Retrieved June 16, 2014.
- Inside the course: TPC River Highlands Archived 2011-06-04 at the Wayback Machine.
- "Spieth's Playoff Win Caps Record Attendance For PGA Tour Travelers Championship". www.sportsbusinessdaily.com. Retrieved 2017-07-25.
- "Course map" (PDF). Travelers Championship. May 2012. Retrieved June 8, 2012.
- "Dickinson Takes Insurance Golf". The Modesto Bee. California. United Press. September 3, 1957. p. 17. Retrieved June 26, 2010.
- "Littler Listed Insurance City Golf Favorite". The Deseret News. Salt Lake City, Utah. United Press. June 28, 1956. p. 2D. Retrieved June 26, 2010.
- "Weather Rated Big Factor In Insurance Open". The Tuscaloosa News. Alabama. Associated Press. June 28, 1956. p. 11. Retrieved June 26, 2010.
- "Palmer takes Insurance Open after playoff with Ted Kroll". Montreal Gazette. Associated Press. June 2, 1956. p. 16.
- "Sammy Snead Takes Berth". Prescott Evening Courier. Arizona. Associated Press. September 6, 1955. p. 5. Retrieved June 26, 2010.
- "Bolt and Stewart Play Off For Wethersfield Golf Cash". The Day. New London, Connecticut. Associated Press. June 28, 1954. p. 19. Retrieved June 26, 2010.
- "Toski Nabs $15,000 Insurance City Go". Daytona Beach Morning Journal. Florida. Associated Press. August 31, 1953. p. 7. Retrieved June 26, 2010.
- Travelers Championship – Winners Archived 2011-06-29 at the Wayback Machine. – at golfobserver.com (since 1970)
- Johnson, Sal; Seanor, Dave, eds. (2009). The USA Today Golfers Encyclopedia. New York, New York: Skyhorse Publishing. ISBN 978-1-60239-302-8.
- Ted Kroll Cops Storm-Hindered Insurance Open
- Palmer Uses Foe's Putter for Playoff Win
- 18-inch putt costs Wall $1,900
- Charles Sifford Wins Hartford Tourney
- Casper Grabs Hartford Win
- Trevino Tops Elder To Cop Hartford Open
- Billy Casper Leaves Mob to Capture Hartford Crown
- Stockton Claims Hartford Win
- Kratzert outduels Strange, wins Greater Hartford Open
- Norris wins in Hartford by 6 strokes
- Controversial Mac 'Grady wins Hartford Open
- Azinger of a chip keys Hartford win
- Lanny Wadkins wins his 21st title at the Hartford Open
- Long Putt Gives Begay Back-to-Back Victories
- Golf; Mickelson Earns Repeat Title at Greater Hartford Open
- Hartford triumph for Jacobsen
- Tournament History Archived 2011-05-04 at the Wayback Machine.
- "Patrick Cantlay's 60 is amateur record on PGA Tour". San Francisco Chronicle. Associated Press. June 25, 2011. Retrieved June 18, 2013.
- "Streelman sets birdie record in win". ESPN. Associated Press. June 22, 2014.
- Sobel, Jason (August 7, 2016). "Jim Furyk notches record for best PGA Tour round". ESPN.
- Official website
- Coverage on the PGA Tour's official site
- TPC River Highlands
- Greater Hartford Jaycees website