The 1979 Seattle Mariners season was the franchise's third since its creation. The Mariners ended the season in sixth place in the American League West with a record of .410. The Mariners hosted the All-Star Game on Tuesday, July 17.

Offseason

Regular season

Season standings

Record vs. opponents

Opening Day lineup

Notable transactions

All-Star Game

The 1979 Major League Baseball All-Star Game was the 50th playing of the midsummer classic between the all-stars of the American League (AL) and National League (NL), the two leagues comprising Major League Baseball. The game was held on July 17, 1979, at the Kingdome, the home of the Mariners. The National League defeated the American League, 7–6.

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

Awards and honors

All-Stars

1979 Major League Baseball All-Star Game

Farm system

LEAGUE CHAMPIONS: San Jose