Tri-Cities most often refers to:
Tri-City, Tricity or Tri-Cities may also refer to:
Americas
United States
- In California:
- Tri-Cities in Los Angeles County, California, refers to the Burbank, Glendale, and Pasadena area, particularly in the local real estate industry.
- Tri-City, San Diego County, California, Oceanside, Vista, and Carlsbad
- Tri-City area in the San Francisco Bay Area refers to the three neighboring cities Fremont, Newark, and Union City.
- Tri-Cities, Georgia, consisting of College Park, East Point, and Hapeville, all of which are near Hartsfield–Jackson Atlanta International Airport
- Tri-Cities, Illinois, in Kane County, Illinois, the county seat of Geneva and the nearby cities of Batavia, and St. Charles,
- In Michigan:
- Tri-Cities, Missouri in the central part of the state, Columbia, Jefferson City, and Fulton
- Tri-Cities, Nebraska in the south-central part of the state, Grand Island, Kearney, and Hastings
- Tri-Cities, New Hampshire, Rochester, Dover and Somersworth
- Tri-Cities, New Mexico, Farmington, Bloomfield, and Aztec
- In New York:
- In North Carolina:
- Piedmont Triad in North Carolina, consisting of Greensboro, Winston-Salem, and High Point.
- Research Triangle in North Carolina, consisting of Raleigh, Durham, and Chapel Hill.
- Tri-Cities, Oklahoma, Tuttle, Newcastle, and Blanchard
- Tri-City, Oregon, a census-designated place (CDP) and unincorporated community in Douglas County, Oregon, United States, named for 3 cities: Myrtle Creek, Canyonville and Riddle.
- Lehigh Valley in Pennsylvania: Allentown, Bethlehem, and Easton
- Tri-Cities, Tennessee, Tennessee and Virginia, consisting of the three cities of Bristol, Kingsport, and Johnson City
- Golden Triangle (Texas) consisting of Beaumont, Port Arthur, and Orange.
- In Virginia:
- Historic Triangle, three historic colonial communities on the Virginia Peninsula, namely Jamestown, Williamsburg, and Yorktown
- Tri-Cities, Virginia, consisting of Petersburg, Colonial Heights, and Hopewell in the Greater Richmond Region
- Tri-Cities, Washington, consisting of Richland, Pasco, and Kennewick, Washington
Asia
India
- Chandigarh Tricity, consisting of Chandigarh, Panchkula and Mohali.
- Mumbai Metropolitan Area, consisting of Mumbai, Navi Mumbai and Thane.
- Noida Ghaziabad Tricity, consisting of Noida, Greater Noida and Ghaziabad.
- Bhilai-Raipur-Atal Nagar Tricity, consists of Bhilai, Raipur and Naya Raipur.
- Ahmedabad Metropolitan area, consists of Ahmedabad, Gandhinagar and GIFT City.
- Udupi Tri-City, consisting of Udupi, Manipal and Malpe
- Warangal Tri-City, consisting of Warangal, Hanamkonda, and Kazipet.
- Chennai Metropolitan Area,consisting of Chennai,Avadi and Tambaram
- Ranipet Tri-City, consisting of Ranipet, Walajapet and Arcot.
Europe
Switzerland-Germany-France
- Dreyeckland – Basel (Switzerland), Weil am Rhein (Germany) and St.Louis (France)
- Tri-Cities Blackhawks, former name of the Atlanta Hawks from 1946 to 1951
- Tri-City Americans, an ice hockey team in Kennewick, Washington.
- Tri-City Dust Devils, a minor league baseball team in Pasco, Washington, United States.
- Tri-City ValleyCats, a minor league baseball team in Troy, New York
- Tri-City Chili Peppers, a collegiate summer baseball team in Colonial Heights, Virginia.