As coach Edward Joseph O'Brien (December 11, 1930 – February 21, 2014) was an American Major League Baseball shortstop, outfielder and pitcher.

[1] O'Brien attended Seattle University, where he played on the basketball team for the Chieftains (along with his brother Johnny) and participated in a stunning 84–81 upset over the Harlem Globetrotters on January 21, 1952.

[3] While in Pittsburgh, Johnny and Eddie O'Brien became the first twins in major league history to play for the same team in the same game.

The others are Garvin and Granny Hamner, for the Philadelphia Phillies in 1945; Frank and Milt Bolling, with the Detroit Tigers in 1958, and Billy and Cal Ripken, for the Baltimore Orioles during the 1980s.

O'Brien also worked as the Athletic Director at Seattle University and as an energy consultant for the Alaskan shipping industry.