The Ashoka Chakra is an Indian symbol which is a depiction of the Dharmachakra. It is called so because it appears on a number of edicts of Ashoka, most prominent among which is the Lion Capital of Ashoka. The most visible use of the Ashoka Chakra today is at the centre of the Flag of India, where it is rendered in a navy blue colour on a white background, replacing the symbol of charkha of the pre-independence versions of the flag. It is also shown in the Ashoka Chakra medal, which is the highest award for gallantry in peacetime.

The national flag of India, colloquially called Tiraṅgā, is a horizontal rectangular tricolour flag, the colours being of India saffron, white and India green; with the Ashoka Chakra, a 24-spoke wheel, in navy blue at its centre. It was adopted in its present form during a meeting of the Constituent Assembly held on 22 July 1947, and it became the official flag of the Union of India on 15 August 1947. The flag was subsequently retained as that of the Republic of India. In India, the term "tricolour" almost always refers to the Indian national flag.