Daniel James Reyburn (born October 13, 1976) is an American Major League Baseball umpire. He wore uniform number 70 when he first came up to MLB, then changed to number 17 starting with the 2018 season, two years after the retirement of John Hirschbeck, who previously wore #17.

Reyburn played center field for the Hope College Flying Dutchmen and graduated in December 1999 with a bachelor's degree in Sociology. In January 2000, he enrolled at the umpire school in Florida and graduated after five weeks of training.^[1]

Reyburn has been an umpire in the Midwest League (2002), Florida State League (2003), Eastern League (2004–2005) and Pacific Coast League (2006–2009). He has served as an MLB call-up umpire in 2008 and 2009. He worked the Taiwan qualifier of the 2013 World Baseball Classic in November 2012.^[2]

Reyburn was umpiring in the Dominican League in 2009-2010 when he became the center of media attention on January 16. He ejected Licey Tigers catcher Ronny Paulino for arguing balls and strikes, then was attacked by Licey manager José Offerman. Offerman had to be removed by the police and was banned for 3 years from the Dominican League for the assault.

• List of Major League Baseball umpires