John M. Greaney (born April 8, 1939) is a former Associate Justice of the Massachusetts Supreme Judicial Court and former Chief Justice of the Massachusetts Appeals Court. After his judicial retirement, he served as Director of the Macaronis Institute for Trial and Appellate Advocacy at Suffolk University Law School. He currently is in private practice as Senior Counsel at Bulkley Richardson in Springfield, Massachusetts.
John Greaney was born in Westfield, Massachusetts, on April 8, 1939. He graduated from St Mary's High School, the College of the Holy Cross, and received a law degree from New York University School of Law. After briefly serving in the military, Chief Justice Greaney joined the Springfield law firm of Ely and King until his appointment to the Hampden County Housing Court in 1974.
Greaney served as presiding judge in the Housing Court until Governor Michael Dukakis appointed him to the Superior Court in 1975, then to the Appeals Court in 1978. He served as an associate justice until 1984, when he became the Appeals Court's chief justice. In 1989, Greaney was appointed to the Supreme Judicial Court, where he served until his retirement in 2008. In his time on the bench, he wrote a well-known concurrence in Goodridge v. Department of Public Health. In 2008, Justice Greaney retired from the court and was appointed director of the Macaronis Institute for Trial and Appellate Advocacy at Suffolk University Law School in Boston.
- "Appeals Court Bio".
- WBZ News Nov. 30, 2008 "Archived copy". Archived from the original on 2008-12-03. Retrieved 2010-04-21.CS1 maint: archived copy as title (link)
- Suffolk Press Release Archived 2008-08-23 at the Wayback Machine (accessed November 13, 2008)
- Denise Lavoie, Associated Press / November 30, 2008, Boston Globe, "Retiring SJC judge Greaney no shriking violet" http://www.boston.com/news/local/massachusetts/articles/2008/11/30/retiring_sjc_judge_greaney_no_shrinking_violet/
- Massachusetts Lawyers Weekly, Massachusetts Judicial Profiles 
Paul J. Liacos
| Associate Justice of the Massachusetts Supreme Judicial Court