Mark Carlson (umpire)

Mark Carlson
Mark Carlson
	Carlson in 2013
MLB – No. 6
	Umpire
	Born: July 11, 1969; Joliet, Illinois, U.S.
MLB debut
	June 11, 1999
Last appearance
	April 23, 2025
Career highlights and awards
	Special Assignments All-Star Games (2003, 2017); Wild Card Games (2017, 2021); Division Series (2005, 2007, 2011, 2012, 2015, 2020, 2022, 2023, 2024); League Championship Series (2013, 2014, 2017, 2018, 2019, 2021); World Series (2015, 2020, 2024); World Baseball Classic (2023);

Mark Christopher Carlson (born July 11, 1969) is an American retired Major League Baseball umpire. He wore number 48 until the 2012 season, when his number changed to 6. He was promoted to crew chief for the 2021 season. Carlson's MLB career began in 1999, and he retired following the 2025 season.