This study develops and validates a scale for gauging consumer involvement in storytelling (to create memorable and emotionally resonant experiences) in hospitality marketing through four phases: qualitative inquiry, construct definition, item refinement, and nomological validation. Validation involves 24 in-depth video interviews and consecutive online surveys. The hospitality marketing storytelling involvement scale, with four dimensions�contextual cues, emotional engagement, mental cognition, and immersive experience�comprising 14 items, precisely measures consumer involvement. The scale integrates narrative transportation theory and the elaboration likelihood model to enhance understanding of consumer engagement with fundamental human cognitive and emotional processes. The validated scale offers a valuable tool for marketers to precisely assess consumer involvement and strategically leverage storytelling to evoke emotions, foster brand loyalty, and judge campaign effectiveness. In diverse marketing contexts that elicit emotions, resonate with individuals, and foster immersive experiences, the scale demonstrates remarkable adaptability. Ultimately, it can help marketers craft compelling narratives, enhance brand perception, and strengthen consumer relationships, thereby contributing to emotional connections, optimizing strategies, and enhancing consumer engagement effectiveness. © 2024 The Authors. Psychology & Marketing published by Wiley Periodicals LLC.