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Mark G. Mastroianni

b. 1964

United States District Judge of the United States District Court for the District of Massachusetts

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About Mark G. Mastroianni

Born 1964. Mark G. Mastroianni is an American lawyer, judge and politician.

Mark Gerald Mastroianni (born 1964) is a United States district judge of the United States District Court for the District of Massachusetts. He has served on the court since 2014. Prior to joining the federal bench, he was district attorney of Hampden County, Massachusetts.

Early life and education Mastroianni graduated from Cathedral High School in Springfield, Massachusetts. He received a Bachelor of Arts degree, magna cum laude, in 1986, from the American International College. He received a Juris Doctor in 1989 from Western New England School of Law.

Career

Mastroianni began his career in the Hampden District Attorney's Office as an assistant district attorney in 1990. From 1995 to 2011, he worked as an attorney in private practice as a sole practitioner, focusing his practice on criminal defense matters in state and federal court. He then became district attorney for Hampden County, Massachusetts, serving as the chief law enforcement officer of the county and managing an office of nearly 140 employees. Mastroianni was rated "well qualified" for the post by a substantial majority of the American Bar Association's Standing Committee on the Federal Judiciary. He received a hearing before the Senate Judiciary Committee on February 11, 2014. His nomination was reported out of committee by voice vote on March 6, 2014. On May 22, 2014 Senate Majority Leader Harry Reid filed for cloture on the nomination. On June 3, 2014, the Senate invoked cloture on his nomination by a 56–39 vote. On June 4, 2014, Mastroianni was confirmed by a 92–2 vote. He received his judicial commission the following day,

Notable cases Mastroianni presided over a trademark case involving the name "fire cider" (a mixture of herbs, apple cider vinegar, and other ingredients). After a Pittsfield, Massachusetts-based company registered the phrase as a trademark in 2012, others brought suit, contending that the phrase is a longstanding phrase in herbalism that cannot be trademarked. In 2019, Mastroianni issued a decision siding with the challengers and holding that "fire cider" is a generic term.

In 2017, Mastroianni dismissed a defamation lawsuit brought by Katherine Mae McKee against comedian Bill Cosby. After McKee accused Cosby of raping her in 1974, a Cosby representative published a public letter in 2014 questioning her credibility, prompting the woman to sue for defamation. In dismissing McKee's suit, Mastroianni held that the Free Speech Clause of the First Amendment to the United States Constitution gave broad liberty to for individuals publicly accused of misconduct to defend themselves without fear of being held liable for defamation.

Personal life Mastroianni is married and has three daughters.

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Important facts

Birth century
Nationality
Education
Western New England University, American International College, Western New England University School of Law
Also known as
Mark Gerald Mastroianni

People in Mark G. Mastroianni's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Mark G. Mastroianni's

Frequently asked questions

Who is Mark G. Mastroianni?

United States District Judge of the United States District Court for the District of Massachusetts

When was Mark G. Mastroianni born?

Mark G. Mastroianni was born on 30 May 1964 in Springfield.

What is Mark G. Mastroianni's occupation?

Mark G. Mastroianni is a lawyer, judge and politician.

What nationality is Mark G. Mastroianni?

Mark G. Mastroianni is American.

Sources & further reading

Β· Wikipedia: Mark G. Mastroianni

Β· Wikidata: Q16732121

Β· DBpedia: Mark G. Mastroianni

Cite this page

APA: Biography.guide. (2026). Mark G. Mastroianni. https://biography.guide/mark-g-mastroianni/

MLA: "Mark G. Mastroianni." Biography.guide, https://biography.guide/mark-g-mastroianni/.

Chicago: "Mark G. Mastroianni." Biography.guide. https://biography.guide/mark-g-mastroianni/.

Data last updated: 2026-09-22 Β· Spot an error? Report a correction.

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