Radomyshl is a historic city located in northern Ukraine within the Zhytomyr Oblast. Situated on the left bank of the Teteriv River, which serves as a right tributary of the Dnieper, the city lies within the historical region of Right-bank Ukraine.
The city currently resides in the Zhytomyr Raion and has a population of approximately 13,685. Prior to 2020, Radomyshl served as the administrative center of its own namesake district, the Radomyshl Raion.