Meet the DA


Middlesex District Attorney Marian Ryan

Middlesex District Attorney Marian T. Ryan has more than three decades of experience prosecuting the state’s most violent felons, fighting for victims, and creating innovative crime prevention initiatives. District Attorney Ryan is responsible for the prosecution of approximately 35,000 cases a year in the 54 cities and towns of Middlesex County.

Prior to becoming District Attorney Ryan served as the Middlesex District Attorney’s Office (MDAO) General Counsel, where she created the county-wide Workplace Safety and Violence Prevention Program, and as Chief of the MDAO’s Elder and Disabled Unit, where she prosecuted crimes involving physical and financial abuse of the most vulnerable victims. Ryan headed the MDAO’s Hinton Lab Crisis Response team, created in the wake of former forensic chemist Annie Dookhan’s criminal conduct that called into question more than 9,000 Middlesex County drug samples. Ryan coordinated an office-wide plan to ensure that defendants had not been unfairly convicted on the basis of tainted evidence.  Ryan worked with defense attorneys, police chiefs, judges and magistrates to establish priorities and protocol and to address serious public safety concerns.

As chair of the non-profit group Middlesex Partnerships for Youth Inc., she has been a leader in crime prevention and pretrial diversion programs directed at young people, to ensure that the District Attorney's Office not only prosecutes the most serious offenders, but also that it acts to prevent crime before it happens. Ryan lectures and leads workshops on the dangers of prescription drug abuse, teen dating violence, anti-bullying, and distracted driving. Ryan created Safe Babies, Safe Kids, an initiative focused on keeping children safe, healthy and well from birth to high school. Working with the county’s 26 college and universities, she also developed a bi-annual college consortium for educators, administrators and campus police, focused on campus safety and security, and Title IX compliance.

Ryan has prosecuted some of Middlesex County’s most complex, challenging and violent cases. She is a skilled and practiced litigator, having successfully brought hundreds of felony cases to trial, including dozens of first-degree murders. As an appellate attorney Ryan has briefed and argued more than 40 cases in the Massachusetts Appeals Court and Supreme Judicial Court.

She is currently on the faculty of Lasell College in Newton, where she teaches courses in Constitutional Law and the American Legal System. Ryan lives in Belmont with her husband Michael, an economist. They have two children.

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Keeping children and families safe.
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Speaking for those without a voice: focusing on unsolved homicides.
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