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Tri-City Atoms
1950–1974 Kennewick, Washington
Minor league affiliations
Class	Class A Short Season (1966–1974)
Previous classes	Class A (1963–1965) Class B (1955–1962) Class A (1952–1954) Class B (1950–1951)
League	Northwest League (1955–1974)
Previous leagues	Western International League (1950–1954)
Major league affiliations
Previous teams	San Diego Padres (1970–1972) Oakland Athletics (1969) Los Angeles Dodgers (1966–1968) Baltimore Orioles (1965) Los Angeles Angels (1963–1964) Baltimore Orioles (1960–1961) Pittsburgh Pirates (1958) Philadelphia Phillies (1952) St. Louis Cardinals (1951)
Minor league titles
League titles (4)	1965 1966 1968 1971
Team data
Previous names	Tri-City Ports (1974) Tri-City Triplets (1973) Tri-City Padres (1970–1972) Tri-City A's (1969) Tri-City Atoms (1965–1968) Tri-City Angels (1963–1964) Tri-City Braves (1962) Tri-City Atoms (1961) Tri-City Braves (1950–1960)
Ballpark	Sanders-Jacobs Field

The Tri-City Atoms were a minor league baseball team located in Kennewick, Washington. The Tri-Cities in southeastern Washington, which include Kennewick, Richland, and Pasco, fielded a number of minor league teams in the Northwest League and its predecessor, the Western International League, from 1955 to 1974.