The Hanuman Chalisa is a devotional hymn addressed to Hanuman, which is traditionally believed to have been written by the 16th-century poet Tulsidas. The poem is usually recited on Tuesdays and Fridays, and it is believed to have been written in the sixteenth century.

The Hanuman Chalisa is regarded as a classic poem, and it has been translated into many languages. The poem is generally eulogised for its qualities, and it is often described as a bestseller.

The word chalisa is derived from the word chalis, which means 40 in Hindi. It is believed that Hanuman's wife, Anjane, pointed out to him the significance of 40, as the poem has 40 verses (excluding the couplets at the beginning and end).