Dr Chris Cottrill is a Consultant Clinical Oncologist based at Barts Cancer Centre (St Bartholomews Hospital) in London.

Dr Cottrill specialises in Breast and Gastrointestinal (oesophagus, stomach, pancreas, colon, rectum and anus) cancers and has a specialist interest in stereotactic radiosurgery (CyberKnife treatment). He has a particular interest in combined modality therapy (combination chemo-radiotherapy). He has been a Consultant at St Bartholomew's Hospital for 10 years and is experienced in all aspects of the chemotherapy and radiotherapy treatment of Breast and Gastrointestinal cancers.

Within the field of radiotherapy Dr Cottrill has a specialist interest in combined chemo-radiotherapy, intensity-modulated radiotherapy (IMRT, RapidArc, VMAT) and image-guided radiotherapy (IGRT). He is fully accredited in the use of CyberKnife stereotactic ablative radiotherapy (SABR) at Barts Hospital, the London Clinic and the Harley Street Clinic CyberKnife units.

Since 2000 Dr Cottrill has lectured annually on international postgraduate courses in the field of evidence-based radiation therapy for the European Society for Radiotherapy and Oncology (ESTRO).