The lieutenant governor of Maryland is the second highest-ranking official in the executive branch of the state government of Maryland in the United States. The officeholder is elected on the same ticket as the governor of Maryland and must meet the same qualifications.

Aruna Miller is an American civil engineer and politician who is serving as the 10th lieutenant governor of Maryland since 2023. Miller, a Democrat, is a former member of the Maryland House of Delegates representing Legislative District 15 in Montgomery County. Miller ran for Congress in 2018 to represent Maryland's 6th congressional district, and lost the Democratic primary to David Trone.