| Country | Flag description |
| French Polynesia | two red horizontal bands encase a wide white band in a 1:2:1 ratio; centered on the white band is a disk with a blue and white wave pattern depicting the sea on the lower half and a gold and white ray pattern depicting the sun on the upper half; a Polynesian canoe rides on the wave pattern; the canoe has a crew of five represented by five stars that symbolize the five island groups; red and white are traditional Polynesian colors note: similar to the red-white-red flag of Tahiti, the largest of the islands in French Polynesia, which has no emblem in the white band; the flag of France is used for official occasions |
| French Southern and Antarctic Lands | the flag of France is used |
| Gabon | three equal horizontal bands of green (top), yellow, and blue; green represents the country's forests and natural resources, gold represents the equator (which transects Gabon) as well as the sun, blue represents the sea |
| Gambia, The | three equal horizontal bands of red (top), blue with white edges, and green; red stands for the sun and the savannah, blue represents the Gambia River, and green symbolizes forests and agriculture; the white stripes denote unity and peace |
| Gaza Strip | void |
| Georgia | white rectangle with a central red cross extending to all four sides of the flag; each of the four quadrants displays a small red bolnur-katskhuri cross; although adopted as the official Georgian flag in 2004, the five-cross flag design appears to date back to the 14th century |
| Germany | three equal horizontal bands of black (top), red, and gold; these colors have played an important role in German history and can be traced back to the medieval banner of the Holy Roman Emperor - a black eagle with red claws and beak on a gold field |
| Ghana | three equal horizontal bands of red (top), yellow, and green, with a large black five-pointed star centered in the yellow band; red symbolizes the blood shed for independence, yellow represents the country's mineral wealth, while green stands for its forests and natural wealth; the black star is said to be the lodestar of African freedom note: uses the popular Pan-African colors of Ethiopia; similar to the flag of Bolivia, which has a coat of arms centered in the yellow band |
| Gibraltar | two horizontal bands of white (top, double width) and red with a three-towered red castle in the center of the white band; hanging from the castle gate is a gold key centered in the red band; the design is that of Gibraltar's coat of arms granted on 10 July 1502 by King Ferdinand and Queen Isabella of Spain; the castle symbolizes Gibraltar as a fortress, while the key represents Gibraltar's strategic importance - the key to the Mediterranean |
| Greece | nine equal horizontal stripes of blue alternating with white; a blue square bearing a white cross appears in the upper hoist-side corner; the cross symbolizes Greek Orthodoxy, the established religion of the country; there is no agreed upon meaning for the nine stripes or for the colors; the exact shade of blue has never been set by law and has varied from a light to a dark blue over time |