Mary Lynn Washington (born May 20, 1962) is an American politician who has served as a member of the Maryland Senate from District 43 since 2019.

[8] She defeated Conway in the Democratic primary in an upset[9] on June 26, 2018, by a margin of 492 votes,[10] and ran unopposed in the general election.

[2] She entered the race at a financial disadvantage,[14] but quickly rose money during the election campaign, reporting $155,000 cash on hand by January 2020, the fourth most of any candidate.

[17] Had she won the Democratic primary and general election, she would have become the city's first openly LGBTQ person to serve as mayor of Baltimore.

[20] In March 2019, she was the lone senator to vote against a bill to allow for "enhanced penalties" when a person kills a pregnant woman.

[26] In March 2018, Washington said she opposed a bill placing a referendum on the 2018 ballot to legalize sports betting at casinos and racetracks to fund education, calling the expansion of gambling a "tax on the poor".

[27] In July 2019, Washington co-signed a letter to the Maryland State Department of Education calling for topics on the LGBT and Disability rights movements to be added to social studies curricula.

[38] In June 2023, Washington said she opposed plans to install a crematorium at a funeral home in the Govans neighborhood of Baltimore, citing its environmental impacts to its surrounding community.

[44] In 2023, she introduced the Trans Health Equity Act, a bill that would require the state's Medicaid program to cover gender-affirming treatment, which passed and was signed into law by Governor Wes Moore.

She introduced legislation in 2014 to adopt the task force's recommendations and create the Maryland Homeless Youth Count Demonstration Project, which also passed and became law.

[46] During the 2021 legislative session, she introduced a bill that would make homeless youth eligible for tuition waivers, which passed and was signed into law by Governor Larry Hogan in May 2021.

[47] In March 2018, Washington was one of three female members of the Maryland General Assembly to refuse to sign onto a letter pushing back against a report on sexual harassment in the legislature, calling it an attempt by legislative leaders to "control the narrative" on the topic of harassment in the State House.

[48] In June 2018, after The Baltimore Sun published a story revealing that state delegate Curt Anderson was under investigation for allegations of sexual assault, she sent a letter to leaders of the Maryland General Assembly questioning the pace of the investigation and calling for the release of an interim report.

[54] During her 2020 mayoral campaign, Washington said she supported investing into small and minority-owned businesses and cutting the city's property tax.

She is married to her wife, Jodi Kelber-Kaye, whom she met during her unsuccessful campaign for state delegate in 2006 and began dating in February 2008.