BackgroundCommunity pharmacists, as primary care providers, are an underutilised resource in antimicrobial stewardship (AMS). Primary care plays an important role in tackling antimicrobial resistance (AMR) as the principle of balancing access to antimicrobials while ensuring optimal use is agnostic to health setting. Understanding the sector's perceptions and practices towards AMS involvement is a continuing focus area of research. However, there is an opportunity to understand the sociological factors which influence the profession's contribution to stewardship practice, particularly across a broader spectrum of sector stakeholders at the individual, practice, system, and policy levels. ObjectiveTo explore stakeholders' perceptions of the Australian community pharmacy sector's AMS involvement. MethodsSemi-structured interviews were conducted with fifteen key informants from the Australian community pharmacy sector. Participants' insights were invited across three broad areas: (1) understanding of AMR and AMS; and the (2) current and (3) future state of community pharmacy's AMS involvement. Interviews were audio-recorded, transcribed verbatim and analyzed using a combined method of inductive (informed by the Theoretical Domains Framework) and deductive thematic analysis. ResultsPerceptions on promoting community pharmacists' AMS involvement within their existing role in promoting the quality use of medicines were heard. Adopting an antimicrobial guardian or gatekeeper role was perceived as influenced by the timing of their interaction with a patient either prior to, or post-consultation with a general practitioner (GP). Suggestions that the profession's potential and actual role in AMS could be challenged or even delimited due to lack of access to completeness of clinical information, and perceived consequences from a clinical and professional engagement perspective were also heard. ConclusionCollaborative partnerships between GPs and community pharmacists, framing stewardship within a quality use of medicines agenda, and highlighting connections between pharmacists' professional services such as minor ailments are key elements enabling community pharmacist's antimicrobial gatekeeper and guardian role.