David William Eiland (born July 5, 1966) is a former American professional baseball player who was a pitcher for ten Major League Baseball seasons. Eiland played college baseball for the University of Florida and the University of South Florida, and thereafter, played professionally for the New York Yankees, San Diego Padres and Tampa Bay Devil Rays. He is currently the pitching coach of the Kansas City Royals.

Eiland was born in Dade City, Florida.

Eiland accepted an athletic scholarship to attend the University of Florida in Gainesville, Florida, where he played for the Florida Gators baseball team. He later transferred to the University of South Florida in Tampa, Florida, and finished his collegiate career playing for the South Florida Bulls baseball team.

The New York Yankees selected him in the 7th round of the 1987 amateur draft and made his major league pitching debut with the Yankees in August, 1988. Used mainly in spot chances, Dave played in New York for 4 seasons, winning only 5 games. He was traded to the Padres in 1992 and did not win a game in 2 seasons despite starting in 9 games. Dave was sent back to the Yankees in 1995 and played for the expansion Devil Rays for 3 seasons before retiring in 2000. Dave played for 10 seasons, won 12, lost 27 with an ERA of 5.74.