Flag | Duration | Use | Description |
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| 1962 to present | | Two vertical bands of green and white and the red crescent moon encircling the red five-pointed star in the center within the dividing line. |
| 2002 to present | | A red field with the white serrated band with five points on the hoist-side. |
| 2002 to present | | Four horizontal bands of yellow, white, red and blue and the green isosceles triangle is based on the hoist-side bearing the white vertical crescent moon with the convex side is facing the hoist and in the center and four small white five-pointed stars are placed vertically in the line in between the points of the crescent. |
| 1977 to present | | Green and blue Rectangle and one Triangle and one red star. |
| 1984 to present | | Three horizontal bands of red, white and black and the National Coat of Arms in gold in the center of the white band. |
| 2008 to present | | Three horizontal bands of red, white and black and the Takbir is written in the Kufic Script in green in the center of the white band. The written of the Takbir is: "ALLAHU AKBAR" (In Arabic for, "GOD IS THE GREATEST"). |
| 1928 to present | | Three horizontal bands of black, white and green and the red isosceles triangle is based on the hoist-side bearing the small white seven-pointed star in the center |
| 1961 to present | | Three horizontal bands of green, white and red and the black trapezoid is based on the hoist-side. |
| 1943 to present | | Three horizontal bands of red, white (double-width) and red and the green Cedar Tree in the center of the white band. |
| 2011 to present | | Three horizontal stripes of red, black (double-width) and green and the white crescent and the five-pointed star in the center of the black stripe. |
| 2017 to present | | A green field with the golden five-pointed star and the golden horizontal crescent moon, the closed side is down, in the center in between two red horizontal bands on the top and the bottom edges of the flag. |
| 1915 to present | | A red field with the Seal of Solomon is the green pentagram, a five-pointed linear star, in the center. |
| 1970 to present | | Three horizontal bands of white, red and green and the red vertical band is on the hoist-side bearing the National emblem of Oman in white in the center and near the top of the red band. |
| 1964 to present | | A horizontal tricolour of black, white, and green; with a red triangle based at the hoist. |
| 1971 to present | | A maroon field with the white serrated band with nine points on the hoist side. |
| 1973 to present | | A green field with the Shahada in the Thuluth Script in white and white horizontal saber, with the tip pointing to the hoist-side, in the center. The flag is manufactured with differing obverse and the reverse sides, so that the Shahada reads and the saber points correctly from right to left on both sides. The Shahada is written as "lā ʾilāha ʾillā-llāh, muhammadun rasūlu-llāh", Arabic for "There is no god but God; Muhammad is the Messenger of God." |
| 1954 to present | | A blue field with a white star in the middle. |
| 1970 to present | | Three horizontal bands of red, white and black and the green isosceles triangle is based on the hoist-side. |
| 1980 to present | | Three horizontal bands of red, white and black and two green five-pointed stars that arranged in the horizontal line in the center of the white band. |
| 1827 to present[1] | | A red field with the large white disk in the center bearing the red crescent moon nearly encircling the red five-pointed star. |
| 1971 to present | | Three horizontal bands of green, white and black and the red vertical band is on the hoist-side. |
| 1990 to present | | Three horizontal bands of red, white and black. | |