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Flags of Paraguay

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Flags of Paraguay

Paraguay's story runs through its Guaraní heartland and a genuinely distinctive regional feature: the Jesuit reductions, self-governing indigenous mission towns that flourished across the territory until the Spanish crown expelled the Jesuits from its American colonies in 1767. Independence followed in May 1811, achieved with unusually little bloodshed compared to the longer wars fought by many of Paraguay's neighbors — but the new republic then turned sharply inward under the strict, isolationist rule of Dr. José Gaspar Rodríguez de Francia.

That isolation gave way to a catastrophic reckoning: the 1864–1870 Paraguayan War, fought against the allied forces of Brazil, Argentina, and Uruguay, is commonly estimated to have killed more than half of Paraguay's pre-war population, including the overwhelming majority of its adult men. The country rebuilt slowly over the following century into the democracy it is today, all under a tricolor that has barely changed since the 1840s.

Scope of this page: the lands of present-day Paraguay, c. 1500s (Guaraní era) – present, five entries. No genuine internal governing split exists within Paraguay's own modern borders at any point in its history, so like Sweden's page in this atlas, this one carries no internal-partition map. Part of a larger atlas — see the map and linked pages at the bottom.

One border, five flags

Paraguay's own real border, traced whole — there is no genuinely separate internal region to carve out here, not even during the catastrophic 1864–70 war that cost the country roughly half its population. What changes, era to era, is only who ruled all of it at once. Press play, or drag the slider.

This page carries no internal-partition map by design. Paraguay has never been divided into two separately-governed pieces — even the War of the Triple Alliance, which stripped away large tracts of territory to Argentina and Brazil, shrank the border rather than splitting it in two.
to 1537
BOLIVIA BRAZIL ARGENTINA PARAGUAY
Guaraní peoples

Real traced border (simplified from public coastal/frontier-vertex data), no internal partition — see the rule box above for why.

How we know this. 4 of 5 eras on this page carry an evidence panel (2 attested, 2 not yet checked). Only the ones marked attested are confirmed by the sources named under them; where sources disagree or a claim could not be confirmed, the panel says so. Eras without a panel have not been looked at yet.
red-white-blue triband; the state flag alone is double-sided, arms on front, treasury seal on back
1870 – present

Republic of Paraguay (modern)

RepublicCirilo Antonio RivarolaRoman Catholicism (until 1992)
Migration & conquest:Occupied by: Brazil (until 1876)Immigration: Mennonite colonists (1927–)Immigration: Brazilian settlers/Brasiguayos (1960s–)

Who & why: after the catastrophic 1864–70 Paraguayan War devastates the country's population and strips away large tracts of territory, Paraguay rebuilds slowly under a long series of republican governments through the 20th century, including the four-decade Stroessner dictatorship (1954–89), before consolidating into today's multiparty democracy.

What it represents: the red-white-blue tricolor, in use in this basic form since the 1840s, remains the national flag throughout. Paraguay is famously one of the very few countries whose state flag differs on its two sides — the national coat of arms on the obverse, the Treasury seal (a lion and liberty cap) on the reverse — a documented design quirk simplified away on the plain triband shown here.

Attestedhow we know this

Wikipedia: on 25 November 1842 Congress unified the flags as a red, white and blue tricolour, 'officially adopted in 1842', the obverse with arms and the reverse with the treasury seal (a lion below a Phrygian cap, 'Paz y Justicia'), last modified by decree of 15 July 2013. Flags of the World: the flag was introduced by the General Congress on 25 November 1842 and its history lists 'flag with the national coat of arms on the obverse and a Treasury Seal on the reverse' for 1842 to 1954(?), with later versions to 2013 (decree of 15 July 2013, proportions 11:20).

Not established: Both publishers date the flag to 1842, so 1870 is only the start of the post-war era, not of the flag; the emblems were simplified in 1988-90 and altered by the 15 July 2013 decree, so the plain triband drawn is a simplification.

Paint guide
Proportions3:5, three equal horizontal bands.
LayoutRed (top), white (middle), blue (bottom); state version bears the coat of arms (obverse) and Treasury seal (reverse) centered in the white band, omitted here for simplicity.
Red#D52B1E
White#F4EFE1
Blue#0038A8
the same tricolor, flown throughout the Paraguayan War
1864 – 1870

Paraguayan War / War of the Triple Alliance

Republic, wartimeFrancisco Solano LópezRoman Catholicism
Migration & conquest:Occupied by: Brazil (Asunción, from 1869)

Who & why: under President Francisco Solano López, Paraguay fights a ruinous war from 1864 to 1870 against the allied forces of Brazil, Argentina, and Uruguay. The war ends in catastrophic defeat: Paraguayan population loss is commonly estimated at more than half the pre-war total, including the vast majority of adult men, permanently reshaping the country's demographics for generations — one of the most severe population losses of any war in the modern era.

What it represents: the sources read do not describe flags during the Paraguayan War. Wikipedia and Flags of the World say the red-white-blue tricolour was regularised in 1842; whether it was worn on uniforms and flown unchanged through the war is not covered.

Not yet checked against sourceshow we know this

Wikipedia: on 25 November 1842 Congress unified the flags as a red-white-blue tricolour with arms on the obverse and treasury seal on the reverse. Flags of the World: its history lists this version (arms obverse, treasury seal reverse) for 1842 to 1954(?) with the question mark in the source, and its 1842 page says the flag was modelled on the 1812 flag; it says nothing about the Paraguayan War (1864-1870).

Not established: No source read mentions the war or states how the flag was used, worn or flown in 1864-1870; FOTW's 1842-1954(?) version span is indirect and queried, and the question of captured or variant war flags is not covered.

Paint guide
Proportions3:5, three equal horizontal bands.
LayoutRed (top), white (middle), blue (bottom).
Red#D52B1E
White#F4EFE1
Blue#0038A8
the tricolor as standardized under Carlos Antonio López, 1840s onward
1811 – 1864

Early republic under Francia and the López family

Republic, isolationistJosé Gaspar Rodríguez de FranciaRoman Catholicism (state-controlled)
Migration & conquest:Emigration: foreign merchants expelled (1820s)

Who & why: Paraguay declares independence in May 1811 with comparatively little bloodshed, a notably quieter break from Spain than many of its neighbors' longer independence wars. Dr. José Gaspar Rodríguez de Francia then rules as a strict, isolationist dictator — "El Supremo" — from 1814 until his death in 1840, deliberately sealing the country off from its neighbors. Carlos Antonio López, and later his son Francisco Solano López, continue a strong centralized state through the following decades, setting the stage for the catastrophic war with the Triple Alliance that begins in 1864.

What it represents: Wikipedia lists several flags before 1842: a blue flag with a white six-pointed star (May 1811), blue-yellow-red stripes (June 1811), the red-white-blue tricolour (15 August 1812, also the earliest tricolour mention in Flags of the World) and Francia's restored blue flag (1826). Congress unified the flag as the tricolour on 25 November 1842; the sources read do not describe the Francia-era flags as 'the same general colours'.

Attestedhow we know this

Wikipedia: a blue flag with a six-pointed star was raised 15 May 1811; blue-yellow-red stripes were used from 17 June 1811; a red-white-blue tricolour was adopted 15 August 1812; Francia restored the blue design in 1826; Congress unified the flag as the red-white-blue tricolour on 25 November 1842. FOTW: the earliest mention of a red-white-blue tricolour in Paraguay is 15 August 1812, and the design was regularised in 1842.

Not established: The page's 'same general colours' for the Francia period is wrong; Wikipedia lists blue and other flags. FOTW does not name Carlos Antonio Lopez, and Wikipedia names him only for 1842.

Paint guide
ProportionsNo fixed ratio before the 1840s standardization; shown at 3:5.
LayoutRed (top), white (middle), blue (bottom).
Red#D52B1E
White#F4EFE1
Blue#0038A8
Cross of Burgundy, the common Spanish colonial banner
1537 – 1811

Spanish colonial Paraguay and the Jesuit missions

ColonyDomingo Martínez de IralaRoman Catholicism (Spanish state religion)
Migration & conquest:Immigration: Spanish colonists (from 1537)Emigration: Jesuits expelled (1767)
Ruling house:House of HabsburgHouse of Bourbon

Who & why: Asunción, founded in 1537, becomes an early and important Spanish colonial outpost in the region, later serving as the seat from which other Spanish settlements in the area were founded. From the early 1600s, the territory becomes home to the distinctive Jesuit reductions — self-governing Guaraní mission towns, dozens of them, combining Catholic evangelization with a degree of indigenous self-administration unusual elsewhere in the Spanish Americas. That era ends when the Spanish crown expels the Jesuits from its American colonies in 1767, a real and locally significant event; independence follows in May 1811.

What it represents: the sources read do not mention the Cross of Burgundy in Paraguay. Wikipedia says Charles III set a red-and-yellow flag in 1785 for naval and military use; Flags of the World says Paraguayan troops carried white, blue and red flags in 1806, that the 1812-1826 tricolour bore the arms of Asuncion on the obverse and those of the King of Spain on the reverse, and lists a blue flag before the 1811 tricolours. Earlier colonial flags are not covered.

Not yet checked against sourceshow we know this

Wikipedia: the last formally used Spanish flag was the red and yellow flag set by Charles III in 1785 for naval and military use. Flags of the World: Paraguayan troops carried white, blue and red flags in 1806 at Buenos Aires; its history lists a blue flag before the 1811 tricolours, tags a provisional blue flag as used 15 May-6 June 1811, and describes the 1812-1826 simple tricolour as bearing the arms of Asuncion on the obverse and of the King of Spain on the reverse.

Not established: No source read places the Cross of Burgundy in colonial Paraguay; the sources read give no flag for 1537-1785.

Paint guide
ProportionsNo fixed ratio recorded; shown at 3:2.
LayoutWhite field, red saltire (Cross of Burgundy), the general banner of Spain's American colonies.
White#F4EFE1
Red#D52B1E
NO FLAG DOCUMENTED
placeholder maroon field — pre-contact era, no flag survives
to 1537

Guaraní peoples

No unified polityNo single ruler documentedIndigenous Guaraní beliefs

Who & why: before Spanish contact, Guaraní-speaking peoples inhabit the territory that is now Paraguay in loosely organized communities and extended kin networks, without a single unifying polity or crown. Spanish colonization begins with the founding of Asunción in 1537, after which this earlier period gives way to the colonial era covered in the next entry.

What it represents: no single flag or polity-wide banner is documented for this pre-contact era. Shown here honestly blank rather than invented, consistent with how this atlas treats other pre-heraldic periods.

Paint guide
ProportionsN/A — no attested flag.

Reading the tags

No unified polity — no single crown or state yet
Colony — governed as Spanish colonial territory
Republic, isolationist — sovereign, deliberately closed off from neighbors
Republic, wartime — sovereign republic fighting for survival
Republic — sovereign under its own republican government
Leader — the named ruler most associated with the era's start
State religion — the official/established faith, not the population's

Find the records

Family history research for Paraguay lives in a different project, Record Atlas, which maps which archive actually holds the paper for a given place and era.

Search Record Atlas for Paraguay →

More of the atlas

This page is one lineage in a larger set. See the region-wide map and the other countries here:

Flags Atlas indexSearch every country and hub South America hubThe continent's countries, one atlas
Compiled from Wikipedia, Flags of the World (fotw.info / crwflags.com), and Britannica. Colors are close historical approximations for painting reference; pre-19th-century swatches are informed reconstructions, not official specifications.