| George Decker | |
| Position: | Outfielder/First baseman |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | 1 June 1866 |
| Birth Place: | York, Pennsylvania |
| Death Place: | Patton, California |
| Debutleague: | MLB |
| Debutdate: | July 11 |
| Debutyear: | 1892 |
| Debutteam: | Chicago Colts |
| Finalleague: | MLB |
| Finaldate: | July 12 |
| Finalyear: | 1899 |
| Finalteam: | Washington Senators |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .276 |
| Stat2label: | Home runs |
| Stat2value: | 25 |
| Stat3label: | Runs batted in |
| Stat3value: | 416 |
| Teams: |
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George A. Decker (June 1, 1866 – June 7, 1909), was a professional baseball player who played outfielder in the Major Leagues from -. Decker played for the St. Louis Browns, Chicago Colts, Louisville Colonels, and Washington Senators.
In 704 games over eight seasons, Decker posted a .276 batting average (756-for-2739) with 423 runs, 25 home runs, 416 RBI and 112 stolen bases. He finished his career with a .959 fielding percentage playing at every position except pitcher and catcher.