These guidelines were drawn up following a consensus meeting of UK sarcoma specialists convened under the auspices of the British Sarcoma Group and are intended to provide a framework for the multidisciplinary care of patients with soft tissue sarcomas. The guidelines published by the European Society of Medical Oncology (ESMO) and the National Comprehensive Cancer Network (NCCN) were used as the basis for discussion and adapted according to UK clinical practice and local requirements. Note was also taken of the National Institute for Health and Clinical Excellence (NICE) improving outcomes guidance (IOG) for people with sarcoma and existing technology appraisals. The guidelines are not intended to challenge NICE guidance but discrepancies may exist where current guidance does not reflect an international standard of care owing to the ever-evolving nature of cancer treatment. It is acknowledged that these guidelines will require updating on a regular basis. An appendix lists the key recommendations which are summarised below. Any patient with a suspected soft tissue sarcoma should be referred to a diagnostic centre and managed by a specialist sarcoma multidisciplinary team. Surgical excision followed by post operative radiotherapy is the standard management of high grade limb sarcomas although occasionally amputation remains the only option. Pre-operative treatment with chemotherapy or radiotherapy should be considered for patients with borderline resectable tumours. Isolated limb perfusion may permit limb salvage in some cases where amputation is the only other option. Adjuvant chemotherapy is not routinely recommended but may be considered in certain specific situations. Regular follow up is recommended to assess local control and the development of metastatic disease. Single agent doxorubicin is the standard first line therapy for metastatic disease. Ifosfamide is an alternative if anthracyclines are contraindicated. Combination therapy may be considered in individual patients. Second line agents include ifosfamide, dacarbazine, trabectedin and the combination of gemcitabine + docetaxel. Surgical resection of local recurrence and pulmonary metastases should be considered in individual patients. There is specific guidance on the management of retroperitoneal and uterine sarcomas.