John Martin "Marty" Swandell (July 1841 – October 25, 1906) was a German–American baseball player and umpire.

Swandell was born Martin Schwendel in the Grand Duchy of Baden in July 1841;[1] the exact day of his birth is unknown.

That year, Eckford went 10-0 and won the NABBP championship,[3] while Swandell was the league's top hitter by averaging four hits per game.

Swandell appeared in two games for the Resolutes, who did little better by going 2-21,[10] and went one-for-nine (.111) at the plate while making two errors in the field.

According to census records and city directories of the era, he still ran the bakery in 1890, and had also returned to using Schwendel, his surname of birth.