David Knezek
Member of the Michigan Senate from the 5th district
In office January 1, 2015 – January 9, 2019
Preceded by	Tupac Hunter
Succeeded by	Betty Jean Alexander
Member of the Michigan House of Representatives from the 11th district
In office January 1, 2013 – December 31, 2014
Preceded by	David Nathan
Succeeded by	Julie Plawecki
Personal details
Born	(1986-08-13) August 13, 1986 (age 38) Dearborn Heights, Michigan, U.S.
Political party	Democratic
Education	University of Michigan–Dearborn (B.A.)
Website	Official website
Military service
Allegiance	United States
Branch/service	United States Marine Corps
Years of service	2006–2012
Rank	Sergeant
Unit	1st Battalion, 24th Marines 2nd Battalion, 24th Marines 3rd Battalion, 24th Marines
Battles/wars	Iraq War
Awards	Navy Achievement Medal Navy Unit Commendation (2) National Defense Service Medal Iraq Campaign Medal (3) Global War on Terrorism Service Medal Sea Service Deployment Ribbon (2)

David M. Knezek Jr. (born August 13, 1986) is an American politician who represents the 8th district on the Wayne County Commission. He is a member of the Democratic Party. Prior to his appointment to the Wayne County Commission in 2020, he served as a member of the Michigan Senate from 2015 to 2018 and as a member of the Michigan House of Representatives from 2013 to 2014. Knezek was defeated in the August 2018 Michigan Senate District 5 Democratic Primary by dark horse candidate Betty Jean Alexander who reported spending nothing on the campaign.

Knezek has a bachelor's degree in political science from the University of Michigan-Dearborn.^[1] He then served in the U.S. military as a scout sniper platoon member in the United States Marine Corps, completing two tours of duty in Iraq. He was honorably discharged in 2014, having risen to the rank of sergeant.^[2]

• Profile at Vote Smart
• Legislative website Archived January 1, 2015, at the Wayback Machine
• Twitter account