Edwin Henry Killian (November 12, 1876 – July 18, 1928), nicknamed "Twilight Ed" and the "Twilight Twirler", was an American left-handed baseball pitcher.
Killian played professional baseball from 1902 to 1912, including seven seasons with the Detroit Tigers from 1904 to 1910.
Twice a 20-game winner (including a 25–13 season in 1907), Killian's career earned run average (ERA) of 2.38 ranks 26th best in major league history.
He also helped lead the Tigers to three consecutive American League pennants from 1907 to 1909, including winning both games of a doubleheader on September 30, 1909, to clinch the third pennant.
Killian allowed only nine home runs during his major league career.
He holds the major league record for the longest streak without allowing a home run -- a streak of 1,001 innings that ran from September 19, 1903, to August 7, 1907.
Killian played in the minor leagues for the Rockford Red Sox of the Three-I League (1902-1903) and the Toronto Maple Leafs of the International League (1910-1911).