Owase Jeelani, BMedSci, MBBS, MBA, MPhil (Medical Law), FRCS is an Honorary Associate Professor at the Institute of Child Health at University College London (UCL). 

A world-renowned neurosurgeon, inventor, philanthropist, and entrepreneur, whose surgical career spans over 20 years. Mr Jeelani, who was ranked in Time Magazine’s top 100 surgeons in the UK in 2011 and the top 100 paediatric specialists in the UK in 2012, is also a Consultant Paediatric Neurosurgeon at Great Ormond Street Hospital (GOSH). He undertakes 200-300 paediatric neurosurgical and craniofacial cases every year. Mr Jeelani was Head of the Department of Neurosurgery at GOSH from 2012 until 2018, establishing it as one of the largest paediatric neurosurgery services in the world and one of the flagship services at GOSH. His leadership and work have brought substantial international recognition to GOSH and the NHS.

Owase Jeelani is the Founder of Gemini Untwined, a global charity dedicated to the treatment of craniopagus twins and other complex craniofacial and neurosurgical conditions.

Owase Jeelani has led the successful separation of multiple craniopagus twins, including Sudanese twins Rital and Ritag in 2011 and then through Gemini Untwined, Pakistani twins Safa and Marwa in 2019, Turkish twins, Yigit and Derman in 2020, and a set of Israeli twins in 2021. These operations have received international recognition, including from The New York Times, the BBC (whose article about Safa and Marwa ranked as the 6^th most read news item globally in 2019), and Sky News.