the following is a list of flags and banners used in Qatar

National Flag

Flag	Date	Use	Description
	1971-Today	Flag of Qatar	A white band on the hoist side, separated from a maroon area on the fly side by nine white triangles which act as a serrated line.[1][2]

Air Force Flag

Flag	Date	Use	Description
	1974-Today	Flag of The Qatar Emiri Air Force	A light blue flag with the national flag in the canton, with the Qatar Air Force's roundel on the fly side.[3]

Historical Flags

Sasanian Empire

Flag	Date	Use	Description
	224–651	Flag of the Sasanian Empire	a Lotus on a purple field, was encrusted with jewels and had trailing red, gold and purple streamers on its edges.

Under Arab Rule

Flag	Date	Use	Description
	632–661	Flag of The Rashidun	A Simple Green Field.
	698–750	Flag of The Umayyad Caliphate	A White Field.
	750–899	Flag of The Abbasid Caliphate	A Simple Black Field.

Jabrids

Flag	Date	Use	Description
	1417-1520	Flag of The Jabrid Emirate	A red field with a white symbol in the center and a white arabic script upwards.

Portuguese Empire

Flag	Date	Use	Description
	1520–1521	Flag of The Kingdom of Portugal	White field with the royal coat of arms in the middle.
	1521-1550	Flag of The Kingdom of Portugal	White field with the royal coat of arms in the middle.

Ottoman Empire

Flag	Date	Use	Description
	1550–1670	Flag of The Ottoman Empire	Red field with a Green Disc in the center and 3 golden crescent moons inside the disc.
	1872-1916	Flag of The Ottoman Empire	A Red Field with a white crescent moon and a 5-pointed star.[4][5]
	1916	Flag of The Ottoman Qatar	A Red Field with a white border and a golden crescent moon.[6]

Omani Empire

Flag	Date	Use	Description
	1670-1783	Flag of the Imamate of Oman	A White Field with The Royal Emblem in the canton.
	1696–1783	Flag of the Omani Empire	A White Field with red arabic script above and a red sword pointed to the right.

Under Bahrain

Flag	Date	Use	Description
	1783-1820	Flag of Bahrain	A simple Red Field
	1820-1860	Flag of Bahrain	a red field with a white stripe off-centered towards the hoist.

Emirate of Diriyah

Flag	Date	Use	Description
	1798-1818	Flag of Diriyah	A Green Field with a White Stripe on the fly and an Arabic script written in white in the center.[7][8][9]

Pre-British Qatar

Flag	Date	Use	Description
	1860-1872	Flag of Qatar	A white band on the hoist side, separated from a red area on the fly side by eleven white triangles which act as a serrated line.[10]

British Qatar

Flag	Date	Use	Description
	1916-1971	Flag of The United Kingdom	A superimposition of the flags of England and Scotland with the Saint Patrick's Saltire (representing Ireland).
	1916–1947	Flag of British India	A Red Ensign with the Union Jack at the canton, defaced with the Star of India emblem displayed in the fly.
	1968–1971	Flag of Trucial States	A Star green With Some Red Stripes.
	1916–1932	Flag of Qatar	A white band on the hoist side, separated from a red area on the fly side by eleven white triangles which act as a serrated line.
	1932–1936	Flag of Qatar	A white band on the hoist side, separated from a brownish-red area on the fly side by seven white triangles which act as a serrated line.[11]
	1936–1949	Flag of Qatar	A white band on the hoist side, separated from a maroon area on the fly side by nine white triangles which act as a serrated line, 10 diamonds in each white triangle and the name of the country in arabic in the center.[12]
	1949–1971	Flag of Qatar	A white band on the hoist side, separated from a maroon area on the fly side by ten white triangles which act as a serrated line.[13]