The 1990 Baltimore Orioles season was a season in American baseball in which the Orioles finished fifth in the American League East with a record of 76 wins and 85 losses.

Offseason

Regular season

On May 25, 1990, the Orioles announced that the team would move their spring training home games from Miami Stadium where they had played since 1959 to Bradenton and Sarasota in 1991. When Cleveland announced that they would leave Hi Corbett Field for Florida, Tucson tried to attract the Orioles to move to Arizona. Ben McDonald became the first Oriole to win his first six major league decisions.

Season standings

Record vs. opponents

Opening Day starters

Notable transactions

Roster

Player stats

Batting

Starters by position

''Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs Batted In''

Other batters

''Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Pitching

Starting pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Other pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Relief pitchers

Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts

Farm system

LEAGUE CHAMPIONS: Rochester, Frederick