Background: Online knowledge translation (KT) approaches are becoming increasingly prevalent within healthcare due to their accessibility and facilitation of international support networks. Online platforms enable timely and far-reaching dissemination of current evidence and best-practice recommendations. Although there is potential to improve the uptake of rehabilitation guidelines, it is essential to consider the acceptability of online approaches to healthcare professionals to ensure their successful integration within everyday clinical settings. Aims: To establish the prospective acceptability of a theoretically informed online intervention for speech pathologists, "Aphasia Nexus: Connecting Evidence to Practice," that aims to facilitate the implementation of aphasia best practice. Methods & Procedures: A mixed-methods multinational electronic survey based on the Theoretical Framework of Acceptability (TFA) completed by aphasia researchers and clinicians. Outcomes & Results: A total of 43 participants completed the survey with 91% (n = 39) indicating that they would use "Aphasia Nexus." Understanding the intervention and how it works ("intervention coherence" as per the TFA) was the key factor influencing the likelihood of integration within everyday clinical practice. Participants identified potential areas where the intervention could influence service change and also recommended further design and content changes to improve the intervention. Conclusions & Implications: "Aphasia Nexus" is an acceptable platform for further feasibility testing in the form of a pilot trial within an Australian-based health service. The study progresses the theory of TFA as it was a valuable framework facilitating the identification of prominent factors influencing acceptability. The study also informs further intervention refinements in preparation for the next stage of research.