Abstract Background As the ageing population continue to rise with this comes an increase in `geriatric syndromes' such as gait, balance or cognitive issues as well as the implications of frailty. Hospitalisation amongst older adults can often see risks such as deconditioning, delirium and losing independence. The role of rehabilitation for older adults becomes key to restoring one’s ability to live independently but can often be impacted by medical or cognitive status, communication and resources within the acute hospital setting. Issues such as uncertainty around goals or abilities as well as lack of resources can mean terms such as `rehabilitation potential' can impact on communication of rehabilitation. Physiotherapists and Occupational therapists frequently communicate with patients, their families and carers as well as the wider multidisciplinary team about older adults’ rehabilitation. Methods Focus groups were conducted among physiotherapists and occupational therapists, who worked in acute hospital settings in Ireland, to explore their perceptions of communication of older adults' rehabilitation. Results Nineteen therapists were recruited across five focus groups, which identified a number of themes around communication of older adults’ rehabilitation. Participants reported on communication strategies such as building rapport and using meaningful goals with older adults' rehabilitation. Participants discussed the rehabilitative journey through the acute setting and the impact of 'rehabilitation potential', resources as well as cognitive and medical status on communication of rehabilitation. Further training on communication were highlighted by participants as an area for future development. Conclusion Communication plays a key role in older adults' rehabilitation and can often be complicated by resources, time and pressures of the acute hospital setting. Multidisciplinary training could play a role in addressing how communication can enhance older adults' rehabilitation.