David Krummenacker (born May 24, 1975) is an American retired middle-distance runner.

He graduated from Las Cruces High School in New Mexico in 1993 where he won several state track titles and also played on the basketball team.

He attended Georgia Tech where he trained under coach Alan Drosky and won back-to-back NCAA Indoor 800 m titles (1997–1998).

[1] He currently resides in Tucson, Arizona, where he trains under the direction of coach Luiz de Oliviera and competes for Team Adidas.

He was the first person to win the title 3 straight years since Johnny Gray accomplished the feat from 1985 to 1987.