The lieutenant governor of Michigan is the second-ranking official in U.S. state of Michigan, behind the governor.

The current lieutenant governor is Garlin Gilchrist, a Democrat, who has held the office since January 1, 2019.

In Michigan, the governor and lieutenant governor are elected as a ticket to serve a term of four years. The election takes place two years after each presidential election; thus, the next election will take place in November 2026.

Following the August primary election in each gubernatorial election year, the state's two largest political parties convene a state convention and nominate candidates for lieutenant governor, secretary of state and attorney general, among other offices. Because the governor and lieutenant governor are elected as a ticket, the party's gubernatorial nominee usually makes the de facto decision as to whom the party will nominate for lieutenant governor, then convention delegates officially confirm the designation.

Historically, the governor and lieutenant governor were elected separately, leading to occasions where Republicans controlled one office and the Democrats another (as with George Romney and T. John Lesinski). This changed with the Michigan Constitution of 1963.

After the November general election, the governor and lieutenant governor take office on January 1. Thus, the winners of the 2022 election began their term on January 1, 2023.

Like the governor, the lieutenant governor is allowed to serve up to two terms in office.

There are three main duties assigned to the lieutenant governor: