Rønnebæk is a village and small satellite community to Næstved, with a population of 540 (1 January 2024),[1] in Næstved Municipality, Region Zealand in Denmark.

It is located 5 km southeast of central Næstved.

Rønnebæk Church is located in the village.

[2] The former manor house Rønnebæksholm is located 1 km west of the village.