Three Rivers may refer to:

• The confluence of the Allegheny River and Monongahela River to form the Ohio River at Pittsburgh, Pennsylvania
  • A nickname for the Pittsburgh area and a phrase used commonly in local culture
  • Three Rivers Park in Pittsburgh
  • Three Rivers Heritage Trail in Pittsburgh and Allegheny County
  • Three Rivers Arts Festival, held in Pittsburgh
  • Pittsburgh Three Rivers Regatta
  • Three Rivers Classic, an ice hockey tournament
  • Three Rivers Stadium, a now demolished sports facility in Pittsburgh
  • Three Rivers Xplosion, a women's football team in Pittsburgh
  • Three Rivers Review, a literary magazine published by the University of Pittsburgh
  • Three Rivers Village School in Pittsburgh

• Three Rivers Station, a pastoral lease in the Mid West of Western Australia
• Three Rivers, Queensland, a locality in the Shire of Cloncurry

• Trois-Rivières, a city formerly called Three Rivers
• Trois-Rivières (federal electoral district), a federal electoral district in Quebec, formerly called Three Rivers
• Three Rivers, Prince Edward Island, an amalgamated town in eastern PEI
• The Three Rivers (Prince Edward Island), the collective name for the Brudenell, Cardigan and Montague Rivers
• Three Rivers, New Brunswick, a village
  • The historical collective name for the Petitcodiac River, the Memramcook River, and the Shepody Bay in New Brunswick

• Three Rivers District, Hertfordshire
• Three Rivers Estuary, Carmarthen Bay

• Three Rivers, California
• Three Rivers, Massachusetts
• Three Rivers, Michigan
• Three Rivers, New Mexico
• Three Rivers Park District, Minnesota
• Three Rivers, the region surrounding Muskogee, Oklahoma
• Three Rivers (Oregon), a river
• Three Rivers, Oregon, a census-designated place
• Three Rivers, Texas
• Three Rivers Petroglyph Site, a state park in New Mexico

• Sanjiangyuan National Nature Reserve or Three Rivers Nature Reserve, Qinghai province, China, containing the headwaters of the Yellow, Yangtze, and Mekong Rivers
• Kiso Three Rivers, Japan, a river confluence
• Three Rivers Proper, a suburb of Vereeniging, Gauteng, South Africa
• Three Rivers East, a suburb of Vereeniging, Gauteng, South Africa

• Three Rivers Casino and Resort, Oregon
• Three Rivers Computer Corporation, a defunct corporation
• Three Rivers Mall, Kelso, Washington
• Three Rivers Press, a book publisher

• Three Rivers Community College (Connecticut), Norwich, Connecticut, United States
• Three Rivers Community College (Missouri), Poplar Bluff, Missouri, United States
• Three Rivers Academy Sixth Form College, Surrey, England, a junior college
• Three Rivers Academy, Trois-Rivières, Québec, Canada, a high school
• Three Rivers Academy, Surrey, England, a secondary school
• Three Rivers Academy Sixth Form College, Surrey, England, a junior college
• Three Rivers School District (disambiguation)
  • Three Rivers Community Schools, a school district in Michigan, United States
• Three Rivers High School (disambiguation)
• Three Rivers Village School, Pittsburgh, Pennsylvania, United States

• Federal Correctional Institution, Three Rivers
• Three Rivers Conference (disambiguation), athletics and activities conference in multiple states
• Three Rivers District (VHSL), Virginia, United States, a school sports conference
• Three Rivers DC v Governor of the Bank of England, a 2001 UK legal case concerning the collapse of the Bank of Credit and Commerce International
• The Three Rivers Regiment (12e Régiment blindé du Canada), a Canadian military unit
• Three Rivers Festival, Fort Wayne, Indiana, United States
• Three Rivers Fountain, Adelaide, South Australia
• Three Rivers Rambler, a tourist train in Knoxville, Tennessee
• Three Rivers (train), a discontinued Amtrak train
• Three Rivers (TV series), an American medical drama, debuted and cancelled in 2009
• Three Rivers, the working title for the 1993 film Striking Distance
• Three Rivers, a fictional suburb in the 1994 show My So-Called Life
• Three Rivers Fire, a 2021 fire in New Mexico

• Three Rivers and St. Maurice, former electoral district in Canada
• Three Rivers East, a suburb of Vereeniging, Gauteng, South Africa
• Three Rivers Proper, a suburb of Vereeniging, Gauteng
• Three Parallel Rivers of Yunnan Protected Areas, Yunan Province, China, within the drainage basins of the Yangtze, Mekong, and Salween Rivers
• Trois-Rivières (disambiguation)
• Tres Rios (disambiguation)
• 三河