Iljinia is a monotypic genus of flowering plants belonging to the family Amaranthaceae.

[2] It only contains one species, Iljinia regelii (Bunge) Korovin ex Iljin [1] Its native range is from Central Asia to Mongolia and northern China.

It is found in the countries of China (within Xinjiang), Kazakhstan, Kyrgyzstan, Mongolia, Tajikistan, Turkmenistan and Uzbekistan.

[1] The genus name of Iljinia is in honour of Modest Ilín (1889–1967), Russian botanist and naturalist, who taught at the university and botanical garden in Saint Petersburg and was a specialist in Chenopodiaceae and Asteraceae.

[3] The Latin specific epithet of regelii refers to botanist Eduard August von Regel.