Indra Lal Roy DFC (Bengali: ইন্দ্রলাল রায়; 2 December 1898 – 22 July 1918) was the sole Indian World War I flying ace.

[6][7] His older brother, Paresh Lal Roy (1893–1979), served in the 1st Battalion, Honourable Artillery Company, and later became known as the "father of Indian boxing.

"[2] His maternal grandfather, Dr. Soorjo Coomar Goodeve Chuckerbutty, was one of the first Indian doctors to be trained in Western medicine.

[2][8] When the First World War broke out, Roy was attending St Paul's School, Hammersmith in London, England.

Initially rejected by the Royal Flying Corps on the grounds of poor eyesight, Roy paid for a second opinion from a leading eye specialist, and the decision was overturned.

[16] Roy was posthumously awarded the Distinguished Flying Cross (DFC)[5] in September 1918 for his actions during the period of 6–19 July 1918.

[17] His citation read: In December 1998, to mark the 100th anniversary of his birth, the Indian postal service issued a commemorative stamp in his honour.