This paper outlines how marketing, though traditionally considered an enemy of sustainability, can play a role in implementing sustainable tourism. It notes the redefinition in 2007 by the American Marketing Association of marketing's aims to consider wider societal issues beyond those of clients and customers. It illustrates how the recognition of the importance of sustainable tourism at all scales of tourism activity provides marketing with an opportunity to pursue sustainability outcomes. We review the strategic tourism marketing planning process and conceptually develop a sustainability tourism marketing model that embeds sustainability considerations at each stage of the planning process. Our proposed model contributes to sustainable tourism theory development and offers a conceptual tool for managing a tourism organisation's ecological and societal footprint on the supply side and a critical opportunity for transforming consumer decision-making on the demand side, irrespective of tourism scale. A 30-cell matrix is proposed that cross-references a strong set of 10 marketing elements (product, price, promotion, place, participants, process, physical evidence, partnership, packaging and programming) against the questions posed by the triple bottom line of economic factors, the environmental and sociocultural concern, creating a check list of indicators for management purposes.