Russell Errett McKelvy (September 8, 1854 – October 19, 1915) was an American Major League Baseball player who played center field for the 1878 Indianapolis Blues of the National League (the only year the Blues were in the Major Leagues), and one game in right field for the 1882 Pittsburgh Alleghenys.

After attending Allegheny College[1][2] from 1873 through 1877, McKelvy signed with the Indianapolis Blues of the National league for the 1878 season.

[2] He became the first player from Allegheny College to make it to the Major League level, as well the first to hit a home run.

[1] It came against Bobby Mitchell on June 1, 1878, in the top of the third inning, when he hit a two-run, inside-the-park home run.

[3] McKelvy played in a league leading 63 games that season,[2] 62 of them in center field, which also led all National league center fielders in games played.