Flag of San Juan Province, Argentina

San Juan Province
UseNational flag and ensign
Proportion9:14
AdoptedDecember 17, 2018 (2018-12-17)
UseReverse flag

The province of San Juan Province, Argentina in Argentina uses as its provincial flag the banner used by the 4th Division of the Army of the Andes during the Argentine War of Independence. The flag consists of a white stripe between two light blue stripes, forming an even, horizontal triband. This is a rare case of a flag whose two sides are clearly distinct from each other. The side showing the provincial coat of arms in the center is considered the obverse, while the reverse contains the Sun of May.