The Maine Supreme Judicial Court is the highest court in the state of Maine's judicial system. It is composed of seven justices, who are appointed by the governor and confirmed by the Maine Senate. Between 1820 and 1839, justices served lifetime appointments with a mandatory retirement age of 70. Starting in 1839, justices have been appointed for seven-year terms, with no limit on the number of terms that they may serve nor a mandatory retirement age.

Known as the Law Court when sitting as an appellate court, the Supreme Court's other functions include hearing appeals of sentences longer than one year of incarceration, overseeing admission to the bar and the conduct of its members, and promulgating rules for all the state's courts.

The Maine Supreme Judicial Court is one of the few state supreme courts in the United States authorized to issue advisory opinions, which it does upon request by the governor or legislature, as set out in the Maine Constitution.

It is also unusual for a state's highest appellate court in that its primary location is not that of the state's capital city, Augusta, partially because the Kennebec County Courthouse did not have a courtroom large enough for the Supreme Court's proceedings. The court did meet there from 1830 until 1970, when it permanently moved to the Cumberland County Courthouse. The renovation of the Kennebec County Courthouse in 2015, which included expansion of the bench in its largest courtroom to permit all seven justices to sit there at the same time, has allowed the court to meet there at least twice a year. It will also continue to meet in Portland, Bangor, and at high schools around the state. The new Judicial Center in Biddeford, scheduled to be completed in early 2023, will also contain a courtroom large enough to permit the court to sit there.

The MSJC is also authorized to rule on the fitness of the governor of Maine to serve in office, which it does upon the secretary of state certifying to the court that the governor is temporarily unable to carry out the duties of that office. The court must then hold a hearing and, if it agrees that the governor is unfit, declare the office of governor temporarily vacant and transfer its duties to the president of the Maine Senate, who would serve as acting governor. If the secretary of state later certifies to the Supreme Court that the governor is fit to resume office, the court would then decide whether it agrees.

Justice	Born	Joined	Term ends	Appointed by	Law school
Valerie Stanfill, Chief Justice	1957 or 1958 (age 66–67)	June 8, 2021	June 8, 2028	Janet Mills (D)	Maine
Andrew Mead	1952 (age 71–72)	March 22, 2007	March 22, 2028	John Baldacci (D)	New York
Andrew M. Horton	(1949-08-28) August 28, 1949 (age 75)	February 4, 2020	February 3, 2027	Janet Mills (D)	Georgetown
Catherine Connors	(1959-01-26) January 26, 1959 (age 65)	February 4, 2020	February 3, 2027	Janet Mills (D)	Northwestern
Rick E. Lawrence	(1955-11-04) November 4, 1955 (age 69)	May 4, 2022	May 4, 2029	Janet Mills (D)	Harvard
Wayne R. Douglas	1951 or 1952 (age 71–72)	March 10, 2023	March 10, 2030	Janet Mills (D)	Maine
seat vacant	–	–	–	–	–

Seat	Seat last held by	Vacancy reason	Date of vacancy	Nominee	Date of nomination
—	Joseph Jabar	Resignation	January 31, 2024	–	–

There are two active retired justices.

Justice	Born	Service began	Ended service	Active retired service began	Appointed by	Law school
Jeffrey Hjelm	(1955-09-30) September 30, 1955 (age 69)	August 1, 2014	December 2019	February 2020	Paul LePage (R)	Case Western Reserve
Thomas E. Humphrey	(1945-11-19) November 19, 1945 (age 78)	June 9, 2015	March 7, 2022	March 7, 2022	Paul LePage (R)	Boston College

• Courts of Maine

• Maine Supreme Judicial Court official website
• Maine Supreme Judicial Court Opinions
• "Maine", Caselaw Access Project, Harvard Law School, OCLC 1078785565, Court decisions freely available to the public online, in a consistent format, digitized from the collection of the Harvard Law Library