Luoyuan County (; Foochow Romanized: Lòä-nguòng) is a county on the northeast coast of Fujian Province, China. It is under the administration of the prefecture-level city of Fuzhou, the provincial capital. The county spans an area of 1,187 square kilometers, and has a population of approximately 255,214 as of 2020. The county's administrative center is the town of .
Luoyuan County administers 6 towns, 4 townships, and 1 ethnic township.
The county's 6 towns are , Songshan, , , , and .
The county's 4 townships are , , , and .
The county's sole ethnic township is Huokou She Ethnic Township.
The WenzhouâÂÂFuzhou railway and National Highway 104 both run through the county.