The Michigan Supreme Court is the highest court in the U.S. state of Michigan. It is Michigan's court of last resort and consists of seven justices. The court is in the Michigan Hall of Justice at 925 Ottawa Street in Lansing, the state capital.

Each year, the Michigan Supreme Court receives approximately 2,000 new case filings. In most cases, the litigants seek review of Michigan Court of Appeals decisions, but the court also hears cases of attorney misconduct (through a bifurcated disciplinary system comprising an investigation and prosecution agency – the Attorney Grievance Commission – and a separate adjudicative agency – the Attorney Discipline Board), judicial misconduct (through the Judicial Tenure Commission), as well as a small number of matters over which the court has original jurisdiction.

In all cases filed with it, the court issues a decision by order or opinion. The court's opinions and orders are reported in an official publication, Michigan Reports, and in Thomson West's privately published North Western Reporter.

The Michigan Supreme Court's other duties include overseeing the operations of all state trial courts. It is assisted in this endeavor by the State Court Administrative Office, one of its agencies. The court's responsibilities also include a public comment process for changes to court rules, rules of evidence, and other administrative matters. The court has broad superintending control power over all the state courts in Michigan.

Article 6, Section 30 of the Michigan Constitution creates the Michigan Judicial Tenure Commission. This agency within the judiciary has jurisdiction over allegations of judicial misconduct, misbehavior, and infirmity. The Supreme Court is given original, superintending control power and appellate jurisdiction over the issue of penalty (up to and including removal of judges from office).

The Michigan Supreme Court can be dated back to the Supreme Court of Michigan Territory, established in 1805 with three justices. These justices served for indefinite terms. In 1823, the terms of justices were limited to four years.

The Michigan Supreme Court was the only court created by the first Michigan constitution in 1835. It had three members and each oversaw one of the three judicial circuits in Detroit, Ann Arbor, and Kalamazoo. The court needed a quorum of two to operate, and members were appointed to seven-year terms by the governor with the consent of the senate. In 1838, Justice William A. Fletcher proposed a new plan for the court that the legislature approved. This increased the number of circuits to four and thus expanded the bench to four justices, but left the quorum at two.

In 1848, the court was expanded to five justices, and the 1850 Michigan constitution provided that they be elected for six-year terms. In 1858, the circuit courts were split from the Supreme Court to allow justices to serve exclusively on the Michigan Supreme Court. The number of seats was reduced to four, with one member to serve as chief justice.