Ellwood Otto Wagenhorst
- Bats Left, Throws Unknown
- Height 5' 11", Weight 165 lb.
- School Princeton University
- Debut June 25, 1888
- Final Game June 26, 1888
- Born June 3, 1863 in Gouldsboro, PA USA
- Died February 14, 1946 in Washington, DC USA
Woody Wagenhorst came out of Princeton University to play two games for the 1888 Philadelphia Quakers. He was five years older than Ed Delahanty, a rookie and teammate who had made his major league debut a month earlier than Woody.
A number of sources say that Wagenhorst also attended Penn.