Tunku Abdul Jalil Iskandar ibni Sultan Ibrahim Ismail (5 July 1990 – 5 December 2015) was the Tunku Laksamana of Johor from 2010 to 2015. He was born to a member of the Johor Royal Family (his paternal side of the family) and the Perak Royal Family (his maternal side of the family).

Tunku Abdul Jalil was the fourth son of the current Sultan of Johor, Sultan Ibrahim Ismail and his consort Raja Zarith Sofiah. He was the fourth grandson of the previous Sultan of Johor, Sultan Iskandar and the previous Sultan of Perak, Idris Shah II of Perak.

Tunku Abdul Jalil was born on 5 July 1990 at Istana Besar, Johor Bahru. He received his early education at Sekolah Sri Utama Johor Bahru and then later at the Yayasan Pelajaran Johor (YPJ) Zaikarim Johor Baru International School. He was a degree holder in Zoological and Conservation Studies from the Zoological Society of London in the United Kingdom.

Upon his return from London, he became a volunteer at the Sepilok Orang Utan Rehabilitation Centre in Sabah.

He was also a volunteer at the Singapore Zoological Garden's Reptile and Veterinary Department for a year.

Tunku Abdul Jalil was also active in various charity organisations including the Johor Spastic Association, Malaysian Nature Society, the Orangutan Appeal UK and the Malaysian Red Crescent Society.

Tunku Abdul Jalil was trained by the Royal Malaysian Police's Special Action Unit (UTK) branch and held the rank of Inspector in August 2015.

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