Kalmar County Museum, County museum in Kalmar Municipality, Sweden.

Kalmar County Museum occupies the former Kalmar Ångkvarn steam mill, a substantial building erected in 1847. One floor is given over to finds from the warship Kronan, sunk off Öland in 1676, and a permanent exhibition covers the illustrator Jenny Nyström. The museum has directed the Kronan investigations since 1981.

The Kalmar County Antiquities Association was formed in 1871, and the museum opened the following year, using two rooms of Kalmar Castle from 1873. It stayed at the castle for over a century before moving into the former Kalmar steam mill in 1987. Since 1981 it has led the investigations of the warship Kronan, sunk off Öland in 1676.

The museum displays everyday objects from the region and invites visitors to discover local craftsmanship and traditions. Regular talks and workshops help people engage with archaeological finds and learn more about the county's past.

The museum is located in the city center and is easy to reach on foot, with plenty of space to explore the different exhibition areas. Accessibility is provided throughout, and staff accept card payments for admission.

The museum preserves finds from ancient shipwrecks and scientific diving expeditions that reveal insights into life at sea. These underwater discoveries tell stories of vessels that rested on the seafloor for centuries before being rediscovered.