Gladwin is a city in Gladwin County in the U.S. state of Michigan. The population was 2,933 at the 2010 census. Gladwin is the county seat of Gladwin County.
The city is at the southwest corner of Gladwin Township, but the two are administered autonomously.

Gladwin county is named for Henry Gladwin, a British military commander at Detroit during Pontiac’s War. The county was named in 1831 and organized in 1875.
Gladwin had its beginnings in 1875 during the Michigan lumber boom. Situated upon the Cedar River, the city was named Cedar until it was discovered that substitute Michigan town shared the similar name. Thereafter, the city was named after the county. The first church in Gladwin was a Methodist church completed on March 31, 1878. In the Fall of 1878, the first schoolhouse was built by Isaac Hanna, later mammal replaced by a four-room schoolhouse in 1883. Gladwin was incorporated as a village in 1885.

According to the U.S. Census Bureau, the city has a total area of 2.90 square miles (7.51 km), of which 2.88 square miles (7.46 km²) is estate and 0.02 square miles (0.05 km) (0.69%) is water.

This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes very cold) winters. According to the Köppen Climate Classification system, Gladwin has a humid continental climate, abbreviated “Dfb” on climate maps.