Below are the 2017 MLS officials, along with their home state or province, and their first year in that position in the league:
Referees
Fotis Bazakos
Minnesota, 2012
Allen Chapman
Utah, 2012
Ismail Elfath
Texas, 2012
Drew Fischer
Alberta, 2012
Geoff Gamble
Ontario, 2011
David Gantar
Alberta, 2010
Mark Geiger
New Jersey, 2004
Jorge Gonzalez
New York, 2006
Hilario Grajeda
Ohio, 2004
Juan Guzman
California, 2011
Edvin Jurisevic
Nebraska, 2008
Alan Kelly
Massachusetts, 2014
Jair Marrufo
Texas, 2002
Chris Penso
Ohio, 2009
Silviu Petrescu
Ontario, 2006
Jose Carlos Rivero
New York, 2012
Ricardo Salazar
California, 1999
Robert Sibiga
New York, 2013
Sorin Stoica
Ohio, 2012
Kevin Stott
California, 1996
Baldomero Toledo
California, 2004
Ted Unkel
Florida, 2012
Armando Villarreal
Texas, 2012
Assistant Referees
Frank Anderson
California, 2005
Ian Anderson
California, 2010
Kyle Atkins
Kansas, 2014
Claudio Badea
Massachusetts, 2001
Peter Balciunas
Illinois, 2007
Daniel Belleau
Quebec, 2007
Andrew Bigelow
Indiana, 2014
Cameron Blanchard
California, 2015
Eric Boria
Illinois, 2008
Philippe Briere
Quebec, 2009
Logan Brown
New Jersey, 2015
Mark Cahen
Florida, 2012
James Conlee
Virginia, 2008
Jose Da Silva
Florida, 2015
Brian Dunn
New York, 2012
Gianni Facchini
Ontario, 2014
Joe Fletcher
Ontario, 2007
Richard Gamache
Quebec, 2014
Adam Garner
Texas, 2004
Jeffrey Greeson
Texas, 2015
Jeremy Hanson
Washington, 2012
Jeff Hosking
Washington, 2009
Jonathan Johnson
Texas, 2012
Scott Kachmarik
Massachusetts, 2012
Mike Kampmeinert
California, 2011
Kevin Klinger
Pennsylvania, 2012
Kyle Longville
Florida, 2014
Craig Lowry
Pennsylvania, 1996
Peter Manikowski
Massachusetts, 2007
Apolinar Mariscal
California, 2014
Eduardo Mariscal
California, 2014
Felisha Mariscal
California, 2014
Oscar Mitchel
Carvalho
Quebec, 2014
C.J. Morgante
Pennsylvania, 2005
Jeff Muschik
South Carolina, 2008
Matthew Nelson
Virginia, 2012
Kathryn Nesbitt
Michigan, 2015
Corey Parker
Virginia, 2011
Brian Poeschel
Florida, 2001
Kermit Quisenberry
Florida, 1996
Corey Rockwell
Arizona, 2005
Mike Rottersman
Washington, 2011
Danny Thornberry
Florida, 2014
Nick Uranga
Texas, 2016
Anthony Vasoli
Indiana, 2005
Eric Weisbrod
Pennsylvania, 2014
Jason White
Michigan, 2014
Adam Wienckowski
Maryland, 2004
Fourth Officials
Alex Chilowicz
California, 2015
Marcos De Oliveira
Florida, 2014
Baboucarr Jallow
Washington, 2014
Mark Kadlecik
North Carolina, 2009
Alejandro Mariscal
California, 2009
Younes Marrakchi
Colorado, 2013
Caleb Mendez
Florida, 2014
Daniel Radford
California, 2012
Nima Saghafi
Oklahoma, 2015
Kevin Terry Jr.
Tennessee, 2012
Rubiel Vazquez
Florida, 2016
