The siege of Vellore was an intermittent series of sieges and blockades conducted during the Second Anglo-Mysore War by forces of the Kingdom of Mysore against a British East India Company garrison holding the fortress at Vellore, located in the present-day Indian state of Tamil Nadu.

First besieged in 1780, Mysore's ruler Hyder Ali eventually reduced the siege to a blockade due to the need for troops elsewhere. The blockade was ineffectively maintained until 1782 before being abandoned. The British successfully resupplied the garrison of Colonel Ross Lang four times.

References

• Vibart, H. M (1881). The military history of the Madras engineers and pioneers, from 1743 up to the present time, Volume 1