Guy Joseph Guzzone (born March 27, 1964) is an American politician who has served as a member of the Maryland Senate representing District 13 since 2015, and as its majority leader from 2019 to 2020.

Guzzone also attended Georgetown University, where he earned an executive certificate in juvenile justice and multi-system integration in 2008.

[3][4] He ran unopposed the Democratic primary in September 1998, and faced Republican Wanda Hurt in the general election.

[10] Guzzone won the Democratic primary in September 2006, placing third and edging out Quinter,[11] and defeated Republican challengers in the general election.

[1] In October 2013, Guzzone was named to the Howard County organizing team for Lieutenant Governor Anthony Brown's gubernatorial campaign.

[15] Guzzone ran in the Democratic primary unopposed and won the general election on November 4, 2014, defeating Republican challenger Jody Venkatesan with 62.3 percent of the vote.

[20] During his tenure as chair, he implemented a three-minute limit on testimonies and frequently utilized work groups to develop policy.

[27] During the 2021 legislative session, Guzzone said he supported Governor Hogan's RELIEF Act, which provided $750 stimulus checks to low-income families in Maryland, calling it a "good place for us to start".

[29][30] In February 2023, Guzzone said that the Budget and Taxation Committee would begin interpreting bills with funding mandates through the lens of a constitutional amendment passed by voters in 2020 that gave the legislature increased power over fiscal policy.

[31] In January 2012, Guzzone criticized Governor Martin O'Malley's plan to shift responsibility for teachers' pensions to local jurisdictions, saying that he would need to be "really convinced" to vote for it.

[39] In 2021, he introduced legislation to establish the Clean Water Commerce Fund to reduce pollution in state waterways, which passed and became law.

[49] He also introduced the "Keep the Door Open Act", which would increase state payments to community behavioral health clinics and organizations.

[51] In June 2020, Guzzone expressed concerns with provisions of Governor Larry Hogan's 2021 budget that reduced worker salaries by $95 million and eliminated 92 positions.

[63] In 2006, he introduced legislation to provide tax credits to homeowners who install solar or geothermal energy equipment, which was unanimously approved by the county council and became law.

[66] In April 2021, Guzzone blocked legislation that would codify promises made by the Maryland Department of Transportation toward highway expansion projects on Interstate 270 and the Capital Beltway, saying that there were "too many issues" with the bill.