Offseason

• December 9, 1982: Rich Bordi
  Rich Bordi
  Richard Albert Bordi is a former Major League Baseball relief pitcher who played from -. He played for the Oakland Athletics, Seattle Mariners, Chicago Cubs, New York Yankees and Baltimore Orioles. Bordi threw and batted right-handed, was 6'7" tall, and weighed 220 pounds. He attended Fresno State...
  
   was traded by the Mariners to the Chicago Cubs
  Chicago Cubs
  The Chicago Cubs are a professional baseball team located in Chicago, Illinois. They are members of the Central Division of Major League Baseball's National League. They are one of two Major League clubs based in Chicago . The Cubs are also one of the two remaining charter members of the National...
  
   for Steve Henderson
  Steve Henderson
  Steven Curtis Henderson is a former Major League Baseball left fielder who is best remembered for being one of the players the New York Mets acquired in the infamous "Midnight Massacre."-Cincinnati Reds:...
  
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• January 20, 1983: Danny Tartabull
  Danny Tartabull
  Danilo Tartabull Mora , also known as Danny Tartabull, is a former right fielder in Major League Baseball. Born to Cuban parents in San Juan, Puerto Rico, he is the son of José Tartabull, who played in the major leagues from 1962 to 1970.-Playing career:Danny played for the Seattle Mariners ,...
  
   was chosen by the Mariners from the Cincinnati Reds
  Cincinnati Reds
  The Cincinnati Reds are a Major League Baseball team based in Cincinnati, Ohio. They are members of the National League Central Division. The club was established in 1882 as a charter member of the American Association and joined the National League in 1890....
  
   as a free agent compensation pick.
• January 27, 1983: Vance McHenry
  Vance McHenry
  Vance Loren McHenry is a former Major League Baseball player for the Seattle Mariners. He played sparingly in two brief major league stints in and , batting .211 in 18 games.-Sources:...
  
   was traded by the Mariners to the Texas Rangers
  Texas Rangers (baseball)
  The Texas Rangers are a professional baseball team in the Dallas-Fort Worth Metroplex, based in Arlington, Texas. The Rangers are a member of the Western Division of Major League Baseball's American League, and are the reigning A.L. Western Division and A.L. Champions. Since , the Rangers have...
  
   for Bob Babcock
  Bob Babcock (baseball)
  Robert Ernest Babcock is a former Major League Baseball pitcher who played for three seasons. He was originally signed by the Pittsburgh Pirates in , and played for the Texas Rangers from to . Babcock currently lives in Butler, Pennsylvania where he is a heck of a golfer.-External links:...
  
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• January 28, 1983: Mike Hart
  Mike Hart (left-handed hitter)
  Michael Lawrence Hart is a former Major League Baseball outfielder. He played parts of two seasons in the major leagues, for the Minnesota Twins in and for the Baltimore Orioles in ....
  
   was released by the Mariners.
• March 28, 1983: Bobby Brown
  Bobby Brown (outfielder)
  Rogers Lee "Bobby" Brown , is a former Major League Baseball player who played outfield in the major leagues from -. Brown played for the Toronto Blue Jays , New York Yankees , Seattle Mariners and San Diego Padres In 502 games, Brown accumulated 313 hits, 26 home runs, 130 RBI, and a .245 batting...
  
   was released by the Mariners.
• March 31, 1983: Ken Phelps
  Ken Phelps
  Kenneth Allan Phelps, nicknamed "Digger", is a former Major League Baseball designated hitter and first baseman. During an 11-year baseball career, he played from 1980-1990 for six different teams, but he played primarily with the Seattle Mariners...
  
   was purchased by the Mariners from the Montreal Expos
  Washington Nationals
  The Washington Nationals are a professional baseball team based in Washington, D.C. The Nationals are a member of the Eastern Division of the National League of Major League Baseball . The team moved into the newly built Nationals Park in 2008, after playing their first three seasons in RFK Stadium...
  
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Notable transactions

• April 4, 1983: Clint Hurdle
  Clint Hurdle
  Clinton Merrick Hurdle is a former Major League Baseball outfielder whose 10-year career was spent with the Kansas City Royals, Cincinnati Reds, New York Mets, and St. Louis Cardinals. After retiring from playing baseball, Hurdle became a manager...
  
   was released by the Mariners.
• May 31, 1983: Bob Long
  Bob Long (baseball)
  Robert Earl Long is a former Major League Baseball pitcher. He had two separate stints in the majors, four years apart. Long appeared in five games for the Pittsburgh Pirates in , then after three seasons in the minors, made 28 appearances for the Seattle Mariners in .-Sources:...
  
   was signed as a free agent by the Mariners.
• June 27, 1983: Gaylord Perry
  Gaylord Perry
  Gaylord Jackson Perry is a former Major League Baseball right-handed pitcher. He pitched from 1962-1983 for eight different teams in his career. During a 22-year baseball career, Perry compiled 314 wins, 3,534 strikeouts, and a 3.11 earned run average...
  
   was released by the Mariners.
• June 30, 1983: Todd Cruz
  Todd Cruz
  Todd Ruben Cruz was an American Major League Baseball player who spent all or part of six seasons in the majors with the Philadelphia Phillies, Kansas City Royals, California Angels, Chicago White Sox, Seattle Mariners and Baltimore Orioles, from 1978 to 1984...
  
   was purchased from the Mariners by the Baltimore Orioles
  Baltimore Orioles
  The Baltimore Orioles are a professional baseball team based in Baltimore, Maryland in the United States. They are a member of the Eastern Division of Major League Baseball's American League. One of the American League's eight charter franchises in 1901, it spent its first year as a major league...
  
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Roster

Starters by position

Other batters

Starting pitchers

Other pitchers

Relief pitchers

Farm system