Zhen'an County () is a county in the south of Shaanxi province, China. It is under the administration and located in the southwest corner of the prefecture-level city of Shangluo, and has an area of and a population of as of 2004.
Zhen'an County administers 1 subdistrict, 12 towns, 2 ethnic towns, and 3 other township-level divisions.
As of 2020, the county's sole subdistrict is ().
Zhen'an County's 12 towns are as follows:
Zhen'an County's 2 ethnic towns are Maoping Hui Ethnic Town () and ().
Additionally, Zhen'an County administers the following three divisions which have township-level status: