
The flag of Afghanistan is currently a disputed topic between the de facto Islamic Emirate of Afghanistan and the de jure Islamic Republic of Afghanistan. The country has had 25 flags since the first flag when the Hotak dynasty was established in 1709. During the 20th century alone, Afghanistan went through 19 national flags, more than any other country during that time period, and most of them had the colors black, red, and green.

The flag of Ascension Island, part of the British overseas territory of Saint Helena, Ascension and Tristan da Cunha, was adopted on 11 May 2013. The flag is a blue ensign design, defaced with the coat of arms of Ascension Island.

The Flag of County Durham is the flag of the historic county of Durham. It was registered with the Flag Institute as the flag of the county in 2013, after winning an online competition to decide a flag for the county.

The Glamorgan flag is the flag of the county of Glamorgan. It was registered with the Flag Institute on 24 September 2013.

The Flag of Los Lagos Region is one of the regional symbols of the Chilean Los Lagos Region. The flag was adopted in 2013 by the Regional Government.

The Flag of Hazaristan includes three colors: yellow, white and blue. It was originally presented on the cover of the anthology Poems for the Hazara. Hazaristan is a modern incarnation of Hazarajat, a mountainous region in central Afghanistan, in the Hindu Kush mountain range. Hazaristan is not an independent country, but has been home to the Hazara people since antiquity, first referenced by extant literature in Baburnama, the Chagatai Turkic-language memoirs of Mughal Emperor Babur.

The intersex flag was created in July 2013 by Morgan Carpenter of Intersex Human Rights Australia.

The flag of Paraguay was first adopted in 1842. Its design, a red–white–blue triband, was inspired by the colours of the French Tricolour, believed to signify independence and liberty. The flag is unusual because it differs on its obverse and reverse sides: the obverse of the flag shows the national coat of arms, and the reverse shows the seal of the treasury. It was revised in 2013 to bring the flag towards its original design. It has a ratio of 11:20.

The Worcestershire flag is the flag of the county of Worcestershire. It was registered with the Flag Institute on 8 April 2013 as the winning entry of a BBC Hereford & Worcester competition. It was first flown in a ceremony at Worcester Cathedral on the same day.