Viiratsi (before 1920: Wieratz) is a small borough (Estonian: alevik) in Viljandi Parish, Viljandi County, Estonia. As of the 2011 census, the settlement's population was 1,332.[1]
The Commander-in-chief of the Estonian Army Johan Laidoner (1884–1953) was born in Raja farmstead near Viiratsi, site now located in nearby Vardja village.