Flag of Formosa Province
| Use | Civil and state flag | 
|---|---|
| Proportion | 9:14 | 
| Adopted | May 15, 1991 | 
| Designed by | María Beatriz Saez and Walter Willimburgh | 
The flag used by the Formosa province in Argentine was selected in a public competition and adopted in 1991. The symbolism of the flag refers to the geographical features of the province.