The 1883 season was the first in the history of the Philadelphia Phillies. The team was founded earlier in the year as a replacement for the Worcester franchise. It was the first year Philadelphia was represented in the National League since the original Athletics were disbanded in 1876 after refusing to finish the season. The American Association's Philadelphia Athletics had been founded a year earlier. The team opened the year managed by Bob Ferguson; however, he was fired as manager after a disappointing 4–13 start and replaced by Blondie Purcell. The team finished the season 17–81, worst in the National League.

Preseason

The Phillies played their first game ever on April 2, 1883, and defeated the amateur Manayunk Ashlands in an exhibition game by the score of 11–0 at Recreation Park.

Regular season

Season standings

Record vs. opponents

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

Relief pitchers

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