Dominican Republic Flag vs Puerto Rico Flag

Compare the Dominican Republic flag and Puerto Rico flag side by side. Discover the key differences and why they look similar.

Dominican Republic flag

Dominican Republic

National Flag

Blue and red quarters divided by a white cross, with the national coat of arms at the center.

Adopted: 1863
Ratio: 2:3
Colors: blue, red, white
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Puerto Rico flag

Puerto Rico

National Flag

Five horizontal stripes of red and white with a blue triangle at the hoist bearing a single white star.

Adopted: 1952
Ratio: 2:3
Colors: red, white, blue
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Key Differences

AspectDominican RepublicPuerto Rico
Flag TypeNational flagUS territory flag
LayoutQuartered field split by a white crossHorizontal stripes with a hoist triangle
Blue AreaFull upper-hoist quadrantTriangle at the hoist only
Center EmblemNational coat of armsSingle white five-pointed star
Adoption Year18631952

Why Do the Dominican Republic and Puerto Rico Flags Look Similar?

Both Caribbean flags use the same red, white, and blue palette inherited from the era of Spanish and American influence. The Dominican design splits the field into blue and red quarters, while Puerto Rico arranges the same colors into stripes and a hoist triangle — the two designs are constantly confused for one another.

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