3 horizontal stripes + addition + white and blue stripe(s)

	Argentina 1845–1860 · state and naval flag
	United Provinces of La Plata (Argentina) 1810–1826 · national flag
	United Provinces of Central Amerika (1823–1824) national flag
	Central American Confederation (1824–1839) national flag
	Nicaragua 1839–1854 · national flag
	Gambier Islands 1837–1871 · flag of the Kingdom of Mangareva (Gambier Islands), today's unofficial flag
	El Salvador merchant flag
	El Salvador state flag and flag of the armed forces ashore
	El Salvador state and naval flag
	Honduras national and merchant flag
	Honduras state and naval flag
	Costa Rica 1824 · national flag
	Costa Rica 1824–1840 · national flag
	Costa Rica 1840–1842 · national flag
	Costa Rica 1842–1848 · national flag
	Nicaragua since 1971 · national, state and merchant flag
	Nicaragua 1908–1971 · national, state and merchant flag
	Nicaragua 1896–1908 · national, state and merchant flag
	Gazankulu (1973–1994) homeland in South Afrika national flag
	Balkaria selfproclamated republic in Russia unofficial flag
	Uruguay 1934–ca. 1995 · naval jack
	Uruguay 1815–1817 · Patria vieja / flag of José Gervasio de Artigas
	Colorado federal state of the USA since 1911 · state flag
	Evenkia former autonomous district within the Russian Federation
	Dominican Republic flag of the Police
	Puntland 1998–2009 · national flag
	Karbardino-Balkaria republic within the Russian Federation national flag
	Lebowa (1972–1994) homeland in South Afrika national flag
	Lesotho since 2006 · national flag
	Bashkortostan republic within the Russian Federation national flag
	Midway possession of USA unofficial flag
	Labrador landscape in Canada unofficial flag
	Estonia naval flag
	Estonia flag of the president
	Estonia flag of the minister of defense
	Maakhir variant of national flag
	Limburg province of the Netherlands
	Buryatia republic within the Russian Federation national flag
	South Africa 1928–1994 · national, state, merchant flag and naval jack