Daniel Francis "Dashing Dan" Costello (September 9, 1891–March 26, 1936) was an American Major League Baseball outfielder. Costello played for the New York Yankees and the Pittsburgh Pirates from 1913 to 1916. In 154 career games, he had 85 hits, 24 RBIs and a .243 batting average. He batted left and threw right-handed. Costello was born in Jessup, Pennsylvania, and died in Pittsburgh, Pennsylvania.

Dan Costello
Outfielder
Born: (1891-09-09)September 9, 1891 Jessup, Pennsylvania, U.S.
Died: March 26, 1936(1936-03-26) (aged 44) Pittsburgh, Pennsylvania, U.S.
Batted: Left Threw: Right
MLB debut
July 2, 1913, for the New York Yankees
Last MLB appearance
August 18, 1916, for the Pittsburgh Pirates
MLB statistics
Batting average	.243
Home runs	0
Runs batted in	24
Teams
New York Yankees (1913) Pittsburgh Pirates (1914–1916)