Kristdala is a locality and a parish situated in Oskarshamn Municipality, Kalmar County, Sweden with 945 inhabitants in 2010.

[1] Between 470 and 443 million years ago, a meteor from the Ordovician meteor event struck south-east of present-day Kristdala and created the Hummeln structure where Lake Hummeln is now located.

In the park are also round stones typical of a type of tomb from the Iron Age.

Near the spot of Kristdala's first church was a marketplace that developed during the Middle Ages.

The summer market is popular with tourists and is visited by approximately 20,000 people a year.