<p>Loneliness and social isolation pose significant health risks to older adults and necessitates the development and application of novel interventions to effectively tackle this critical issue. Social prescribing is a holistic approach to improving health and wellbeing, that involves healthcare providers referring clients to a dedicated connector (i.e. link worker), who works with the client to identify non-medical, community-based supports and services for social needs, such as loneliness. Using mixed methods, we aimed to explore what qualities in providers and in the client-provider relationship are most important for older adults’ interest, participation, and engagement in social prescribing. The study includes a survey with older adults across Canada (<i>N</i> = 4136) and focus groups with older adults (<i>N</i> = 43) with intersectional lived experiences and from diverse backgrounds. Analyses of these data highlighted multifaceted dimensions of trust. Specifically, some older adults overall had trust in the system of what healthcare symbolized in society, but distrust for the individual healthcare providers. On the flip side, some expressed trust for the individual community providers (who may serve as a dedicated connector) but comparatively less trust for the community program system. To enhance the impact of social prescribing for older adults, healthcare professionals and community providers must together and independently prioritize the development of trust. Our research makes a compelling case for training providers in interpersonal skills and allocating time for meaningful interactions. Implementing these actionable steps can bridge the trust gap and turn social prescribing into a vital support system for older adults.</p>