| Sid Farrar | |
| Position: | Infielder |
| Bats: | Unknown |
| Throws: | Right |
| Birth Date: | 10 August 1859 |
| Birth Place: | Paris Hill, Maine |
| Death Place: | New York City, New York |
| Debutleague: | MLB |
| Debutdate: | May 1 |
| Debutyear: | 1883 |
| Debutteam: | Philadelphia Quakers |
| Finalleague: | MLB |
| Finaldate: | October 4 |
| Finalyear: | 1890 |
| Finalteam: | Philadelphia Athletics |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .253 |
| Stat2label: | Home runs |
| Stat2value: | 18 |
| Stat3label: | Runs batted in |
| Stat3value: | 412 |
| Teams: | |
Sidney Douglas Farrar (August 10, 1859 – May 7, 1935) was an American professional baseball infielder. He played in Major League Baseball (MLB) from 1883 through 1890 for the Philadelphia Quakers and Philadelphia Athletics. He was the father of opera singer Geraldine Farrar.[1]