Mark Costello (Oklahoma politician)

Mark Costello
Oklahoma Labor Commissioner
In office
January 10, 2011  August 23, 2015
Preceded byLloyd Fields
Succeeded byMelissa Houston
Personal details
Born(1955-11-10)November 10, 1955
Bartlesville, Oklahoma, U.S.
DiedAugust 23, 2015(2015-08-23) (aged 59)
Oklahoma City, Oklahoma, U.S.
Resting placeLockridge Cemetery
Edmond, Oklahoma, U.S.
Political partyRepublican
Spouse
Cathy Cerkey
(m. 1982)
Children5

Mark Costello (November 10, 1955 – August 23, 2015) was an American politician and businessman who served as Commissioner of Labor of Oklahoma from 2011 to 2015. A Republican, he was elected in 2010, defeating the Democratic incumbent, Lloyd Fields. Before his election he was a businessman who founded several technology companies.

After taking office, he established a non-profit advocacy group to oppose the positions of public employee unions, and fought federal regulations on family farms.