This chapter presents the ICECAP-O, a measure of capability tailored for older people. It briefly presents the original version of the ICECAP-O. In addition, it describes the work that has been done concerning the translation and cross-cultural adaptation of the ICECAP-O to the Swedish context. Finally, the chapter contains arguments for the use of the Swedish version of the ICECAP-O in health and social care, and in the evaluation of interventions and longitudinal research studies where older people’s capabilities are a focus.