Research questionFrom the perspectives of healthcare professionals (HCPs) and people with chronic obstructive pulmonary disease (COPD) known to tertiary care, what influences successful referrals to a pulmonary rehabilitation program (PRP)? MethodsThis cross-sectional qualitative study was informed by a critical realist perspective. We purposively sampled people with COPD and HCPs who deliver COPD care and used semi-structured interviews and focus groups to explore determinants of a successful referral to a PRP. Interviews were recorded, transcribed verbatim and analysed using reflexive thematic analysis. ResultsData were available on 38 HCPs and 15 people with COPD. We generated three core themes pertaining to successful referrals. The first theme was that HCPs should be mindful of how professional responsibilities (such as their personal value and interest in a PRP, their degree of understanding of PRPs, and the organisational culture the PRPs are embedded within) shape decision-making during a therapeutic interaction. The second theme, there's more to me than my COPD, characterised psychological perceptions that shape a person's readiness to engage in a PRP. The third theme, communication is a two-way street that requires careful navigation, characterised the interpersonal dynamic between HCP and patient, and how dedicated conversations about PRPs can encourage successful referrals. ConclusionTherapeutic interactions that include dedicated conversations about PRPs can foster successful referrals among people with COPD. During these interactions, HCPs should take the time to understand and carefully unpack psychological perceptions whilst imparting value, interest and enthusiasm for PRPs. Doing so can shape patient engagement toward referral success.