Farrar /ˈfɑːr/ is an unincorporated community in Salem Township in eastern Perry County, Missouri, United States.

Originally, mail had been brought in from the nearby town of Schalls and handed out on the church steps after Sunday services, until 1892 when R.P.Farrar rode by horseback to Jefferson City to make a request for a post office.

Due to an already existing Salem in Missouri, the soon-to-be postmaster Farrar used his name as a temporary solution, which became permanent.

[7] Despite its size, over the years Farrar has fielded a number of general stores, a dairy cooperative, a transport company, as well as a couple local baseball teams.

[8] According to the United States Postal Service, the zip code of Farrar covers a total area of 1.26 sq mi/3.26 km2, all land.