AbstractBackgroundManagement of patients with colorectal cancer (CRC) is about not only survival, but also quality of life (QoL). What patients want is important but is not well researched or understood for elderly patients where it is very relevant. This study aimed to measure and compare what patients with CRC aged 80 and over and surgeons consider important in terms of survivorship after surgery for CRC.MethodsPatients aged 80 and over who were having surgery for CRC were recruited and interviewed using closed and open questions about their expectations of surgery and various QoL dimensions. These were assessed preoperatively and 3 months post‐operatively. Surgeons ranked the same QoL dimensions of patients by questionnaire.ResultsNineteen patients (median age 87.5, range 80–95, eight males and 11 females) were recruited. Patients rated items relating to health, mobility and independence (n = 23) as top three items most often followed by people outside self (n = 13). Surgeons underestimated importance in 17 domains with the biggest discrepancy being in ‘avoiding a stoma’ (4.11 versus 2.3, P < 0.01).ConclusionWith patients over 80 years having surgery for CRC, there is a lack of concordance between what surgeons think is important and what patients think is important. Despite this, CRC patients aged 80 and older are almost always satisfied with the outcome of surgery. Surgeons should ensure that they understand patients' expectations and that they are aligned with likely outcomes of surgery.