Chronic obstructive pulmonary disease (COPD) is a progressive, life-limiting illness. Despite significant symptom burden, access to advance care planning (ACP) and palliative care are limited. Early initiation of ACP enables patients to articulate the values that underpin the decisions they would make if, in the future, they are unable to speak for themselves. Nurses constitute the majority of health care workforce and are well placed to initiate these discussions. This study explored knowledge, attitudes, and practice regarding ACP for patients with COPD among Australian and New Zealand respiratory nurses. A cross-sectional online survey tested knowledge about ACP and canvassed attitudes about current practice. Data were analyzed using descriptive statistics and content analysis of text data. The 112 participating respiratory nurses had substantial knowledge and positive attitudes regarding ACP in COPD; however, they lacked confidence and clarity regarding their role. Despite advances in end-of-life care provision for chronic disease, well-established barriers remained (inadequate training, fear of distressing patients, and time), and discussion triggers were still linked to acute deterioration, diagnosis of severe disease, and patient initiation. Better articulating the role of the respiratory nurse in ACP and building capacity and confidence within this workforce may improve ACP access for people living with COPD.